Question: What year did a girl snatch Warhol's wig off?
About the article "Andy Warhol", section "Collections".

Candidate passages:
Warhol was an avid collector.
His friends referred to his numerous collections, which filled not only his four-story townhouse, but also a nearby storage unit, as "Andy's Stuff."
The true extent of his collections was not discovered until after his death, when the Andy Warhol Museum in Pittsburgh took in 641 boxes of his "Stuff.
"Warhol's collections included airplane menus, unpaid invoices, pizza dough, pornographic pulp novels, newspapers, stamps, supermarket flyers, and cookie jars, among other eccentricities.
One of his main collections was his wigs.
Warhol owned over forty and felt very protective of his hairpieces which were sewn by a New York wig-maker from hair imported from Italy.
In 1985 a girl snatched Warhol's wig off his head.
It was later discovered in Warhol's diary entry for that day that he wrote "I don't know what held me back from pushing her over the balcony.
"Another item found in Warhol's boxes at the museum in Pittsburgh was a mummified human foot from Ancient Egypt.
The curator of anthropology at Carnegie Museum of Natural History felt that Warhol most likely found it at a flea market.
Edith Minturn "Edie" Sedgwick (April 20, 1943 – November 16, 1971) was an American heiress, socialite, actress, and fashion model.
She is best known for being one of Andy Warhol's superstars.
Sedgwick became known as "The Girl of the Year" in 1965 after starring in several of Warhol's short films in the 1960s.
She was dubbed an "It Girl", while "Vogue" magazine also named her a "Youthquaker". 
Chuck Wein (March 24, 1939March 18, 2008) was an American promoter and manager of entertainment acts whose celebrity stemmed from his five-year (1964–1969) association with Andy Warhol and from his discovery of Edie Sedgwick who became Warhol Superstar of 1965.
Wein graduated from Pittsburgh's Taylor Allderdice High School in 1957 and lived in Cambridge, Massachusetts where he attended Harvard, graduating in 1961.
A thesis he had written, centering on Pirandello's "Six Characters in Search of an Author", remained as a particular source of pride for him.
Continuing to reside in Cambridge, he affected the appearance of a 1795 Edwardian dandy, similar to that of the British Teddy Boys, was a successful racetrack bettor and lived what was described as a Bohemian lifestyle.
In 1963, while at his therapist's office, he met Radcliffe student Edie Sedgwick and when, upon turning 21 in 1964, she moved to New York, he went with her and began acting as her promoter.
Gifted with a glib vocabulary and blonde good looks, he insinuated himself into Andy Warhol's circle of intimates and, by January 1965, had introduced Edie Sedgwick to Warhol and began regularly taking her to Warhol's studio, The Factory.
The celebrity-obsessed Warhol and Sedgwick quickly became fascinated with each other and, by the time Warhol invited Wein and Sedgwick to accompany him to Paris in April 1965 for the opening of an exhibition of his paintings, he announced that Edie Sedgwick would be his new "superstar" and the "Queen of The Factory".
Wein wrote and became Warhol's assistant director on "Beauty No.
2", a 65-minute feature which presents a barely dressed Sedgwick in bed with Warhol regular Gino Piserchio, reacting and responding to the off-screen voice of the never-shown Wein who harasses her with intimate and annoying questions and comments which Piserchio does not seem to hear or be aware of.
The film premiered at the Paris Cinémathèque in July 1965, making Warhol and Sedgwick darlings of the international celebrity circuit, with Wein and Piserchio also basking in the spotlight.
The years 1965 and early 1966 represented the peak period for the Warhol-Sedgwick-Wein collaboration, resulting in nine films, but before the end of the year, a disillusioned Edie Sedgwick left Warhol, never to return.
Little more than two years later, in the wake of Warhol's diminished activity following his near-fatal shooting by Valerie Solanas on June 3, 1968, Wein also departed and began traveling the world, with particular emphasis on the Far East, and managing fringe nightclub acts which usually had some unusual, strange or whimsical characteristics, as well as focusing on the occult.
He can be seen in the 1967 documentary short about Warhol, "Superartist" and, in 1972, was credited as director of the Jimi Hendrix concert film "Rainbow Bridge".
Although the day and month of his birth have remained elusive (although see the IMDb entry below), Wein would have marked his 68th birthday in 2008, the year he died in Del Mar, California, fifteen months after the release of "Factory Girl", director George Hickenlooper's cinematic retelling of Edie Sedgwick's (Sienna Miller) brief life, with particular emphasis on her time with Warhol (Guy Pearce) and Wein, whose portrayal by Jimmy Fallon was tepidly noted by critics as being "convincing" and "adequate". 
Norma seeks help from Poirot, believing she may have committed murder.
She flees, saying he is too old.
He pursues the case, finding that Ariadne Oliver sent Norma Restarick to him.
He believes there is a murder that prompted Norma’s fears.
Poirot and Mrs. Oliver gather information, visiting her parents’ home, and her apartment building.
Norma does not return home after a weekend visit to her father and stepmother.
Mrs. Oliver finds her in a café by chance, with her boyfriend David.
Poirot meets Norma at the café, where she mentions the death again.
After describing the odd times where she cannot recall what has happened, she leaves in fear again.
Mrs Oliver trails David, ending up in the hospital after being coshed on the head upon leaving his art studio.
Poirot arranges for Dr Stillingfleet to follow Norma; he pulls her to safety from a close call with speeding traffic, and brings her to his place for treatment, and for safety.
Norma’s father Andrew abandoned her and her mother Grace when Norma was about 5 years old.
Andrew had run off with a woman in a relationship that ended soon.
He travelled in Africa, in financially successful ventures.
Norma lived with her mother until Grace’s death two and a half years before.
Andrew returned to England after his brother Simon died a year earlier, to work in the family firm, arriving with a new young wife.
Norma can recognize nothing familiar in this man, but accepts him.
Norma is the third girl in her flat, in the fashion of young women advertising for a third girl to share the rent.
The main tenant is secretary to her newfound father; the other girl, Frances, travels often for the art gallery that employs her.
Mrs Oliver learns that a woman in the apartment building had recently died by falling from her window.
A week passes before she tells Poirot, who feels this is what bothers Norma.
The woman was Louise Charpentier.
Norma says that her father ran off with Louise Birell.
Later, Mrs Oliver finds a piece of paper linking Louise Charpentier to Andrew.
Mary Restarick has been ill from poison in her food.
Sir Roderick engages Poirot to find documents missing from his files, which encounter brings young Sonia under suspicion.
Norma is lured from Dr Stillingfleet by an ad in the newspaper to meet David, and is again drugged.
Frances kills David.
She sets it up to appear that Norma did it, but the blood on the knife was congealed when Norma found herself holding it.
With police and family gathered in the flat, Poirot announces that Andrew did die in Africa.
Robert Orwell poses as her father to gain the wealth of the family.
He had David paint portraits of him and his late wife in the style of a painter popular 20 years earlier, as part of the ruse.
Most cruelly, he and his wife have been giving Norma various drugs that give her hallucinations and an altered sense of time, to set her up as guilty.
Further, the wife had poisoned herself, hoping to pin that on Norma, too.
Louise wrote to Andrew on learning he was back in England, so Frances killed Louise; this is the murder Norma feared she did.
The woman posing as stepmother was also Frances, who used a blonde wig to cover her dark hair when changing roles.
Poirot takes the wig from her bag to make that point.
Murder of the two who could expose the imposters was just one of her crimes.
Sonia is exonerated when she finds the papers Sir Roderick misplaced, and the two will marry.
Poirot had chosen Dr Stillingfleet to help him with Norma in hopes the two would marry, and they will. 
Some commenters suspected the clip was fake, noting that the camera operator never stops and helps out and that Jodi's hair seemed to be a wig, even though Behan actually did cut her own hair.
Others felt it was authentic because Jodi's button-down shirt was consistent with what a bride would wear after having her hair done so as to avoid ruining the style by taking a top off over the hair.
Canadian media were particularly interested since the clip was believed to have originated in that country.
The "Toronto Star" even got legendary film director Norman Jewison to review the clip.
He was suspicious, believing the hair to be a wig, but admitted he couldn't say for sure and that if it was, the woman playing the bride had a future in acting.