Please answer the following question: Question: What does Carrie cause to fall of a desk? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: Carrie Context: Shy, bullied high school student Carrie White (Sissy Spacek) experiences her first period as she showers with other girls after gym class. Unsure of what is happening to her, she panics and pleads for help. The other girls respond by pelting her with hygiene products, laughing and chanting "plug it up!" Gym teacher Miss Collins (Betty Buckley) breaks up the commotion and attempts to console Carrie, a light bulb mysteriously breaking as Carrie reaches the height of her panic. Later, the school principal seems uncomfortable as Miss Collins expresses bewilderment that Carrie is so uninformed. As he dismisses Carrie from school, she becomes frustrated that he repeatedly calls her by another name, causing an ashtray to fall from his desk and shatter. On her way home, a young boy teases Carrie, and she makes him fall off his bicycle with just a look. At home Carrie is abused by her fanatically religious mother, Margaret (Piper Laurie), who rants about menstruation being the result of sinful thoughts. Carrie is locked in a small closet and ordered to pray for forgiveness. When she is finally allowed to return to her room, Carrie gazes into her reflection, causing the mirror to shatter. Carrie's classmate Sue (Amy Irving) feels guilty, so she arranges for her boyfriend, handsome and popular Tommy (William Katt), to ask Carrie to the prom. Reluctant at first, Carrie accepts after encouragement from Miss Collins. Another classmate, Chris (Nancy Allen), skips her detention for bullying Carrie, so she is banned from the prom. Swearing vengeance, she recruits her delinquent boyfriend Billy (John Travolta) to play a prank on Carrie. They slaughter pigs from a nearby farm and place a bucket of their blood above the stage at the school's gymnasium. Margaret discovers Carrie's prom plans and attempts to abuse her again. Having researched her telekinesis, Carrie asserts her power and stands up to her mother. Margaret responds by accusing Carrie of being a satanic witch. At the prom, Carrie finds acceptance among her peers...
A:
An ashtray