Question: Who created the character in "Days of Wine and D'oh'ses" that was upset about his friend giving up alcohol?
Context: Isomalt is a sugar substitute, a type of sugar alcohol used primarily for its sugar-like physical properties.  It has little to no impact on blood sugar levels, and does not stimulate the release of insulin.  It also does not promote tooth decay, i.e. is tooth-friendly.  Its energy value is 2 kcal/g, half that of sugars.  However, like most sugar alcohols, it carries a risk of gastric distress, including flatulence and diarrhea, when consumed in large quantities (above about 20-30 g per day).  Isomalt may prove upsetting to the intestinal tract because it is incompletely absorbed in the small intestine, and when polyols pass into the large intestine, they can cause osmotically induced diarrhea and stimulate the gut flora, causing flatulence.  As with other dietary fibers, regular consumption of isomalt can lead to desensitisation, decreasing the risk of intestinal upset.  Isomalt can be blended with high-intensity sweeteners such as sucralose, giving a mixture that has the same sweetness as sugar. Arbella or Arabella was the flagship of the Winthrop Fleet on which Governor John Winthrop, other members of the Company (including Dr. William Gager), and Puritan emigrants transported themselves and the Charter of the Massachusetts Bay Company from England to Salem between April 8 and June 12, 1630, thereby giving legal birth to the Commonwealth of Massachusetts.  During this adventure, the ship is said to have carried three times as much alcohol as water.  The charter recorded around 10,000 gallons of wine on board for the personal supply of the crew and its passengers, and they had consumed almost all of it in six weeks time.  John Winthrop is reputed to have given the famous "A Model of Christian Charity" sermon aboard the ship.  Also on board was Anne Bradstreet, the first European female poet to be published from the New World, and her family. Cocks & Féret or simply Féret, is the colloquial name of a Bordeaux wine directory originally created by Charles Cocks and Michel-Édouard Féret in 1846, which was published under the name "Bordeaux, its Wines and the Claret Country" and translated into French and published as the first edition of "Bordeaux et ses vins" in 1850.  It is regarded as the classic reference work on Bordeaux wines, and is to date considered the most comprehensive information source on Bordeaux' wineries. A new ride share service app called RYDE is taking over what used to be the Taxi industry.  It's cheaper and has more of a "friend giving you a ride" type of feel.  With so many people using this fun new platform, how safe is it?  When a PSYCHOPATH takes over the identity of a Ryde driver, everyone who uses this app will be at the mercy of this maniac.  Getting a RYDE is as simple as a few clicks away, but getting out alive won't be so easy. Falanghina, also called Falanghina Greco, is a variety of wine grape, "Vitis vinifera," used for white wines.  It is an ancient grape variety which may have provided a basis for the classical Falernian wine, and has considerable character.  It is cultivated on the coast of Campania north of Naples, and frequently consumed in southern Italy along with seafood.  The name for the wine appears to derive from the Latin "falangae", or stakes for supporting the grapes in a vineyard.  In November 2014 Falanghina was approved as a recognized varietal by the Alcohol and Tobacco Tax and Trade Bureau for use in the United States. Barnard "Barney" Gumble is a fictional character on the American animated sitcom "The Simpsons".  The character is voiced by Dan Castellaneta and first appeared in the series premiere episode "Simpsons Roasting on an Open Fire".  He is the town drunk of Springfield and Homer Simpson's best friend.  His desperation for alcohol is a frequent butt of jokes on the show.  Barney sobered up in the episode "Days of Wine and D'oh'ses", which was co-written by Castellaneta, and stayed sober for several seasons.  Barney was inspired by the cartoon character Barney Rubble from "The Flintstones" and by several barflies from other television programs.  In 2004, Castellaneta won an Emmy Award for voicing various characters, including Barney. "Days of Wine and D'oh'ses" is the eighteenth episode of the eleventh season of the American animated sitcom "The Simpsons".  It originally aired on the Fox network in the United States on April 9, 2000.  In the episode, Barney realizes how much of a pathetic drunk he is after watching his birthday party video and decides to give up alcohol forever, which does not sit well with his friend Homer.  Meanwhile, Bart and Lisa work together to take a memorable photo for a new phone book cover contest.  The episode was written by cast member Dan Castellaneta and his wife Deb Lacusta.  Several staff members opposed the idea of Barney becoming sober because they did not think a sober Barney would be funny.  Several critics, including Chris Turner, have also criticized the character's change. Gaglioppo is a red wine grape that is grown in southern Italy, primarily around Calabria.  The vine performs well in drought conditions but is susceptible to oidium and peronospora.  The grape produces wine that is full-bodied, high in alcohol and tannins with a need for considerable time in the bottle for it to soften in character.  It is sometimes blended with up to 10% white wine. Blatina is red wine grape variety primarily grown in the Herzegovina region of Bosnia and Herzegovina.  It has a functional female flower (auto-sterile), and for that reason it is always cultivated in plantations with other varieties such as Alicante bouschet (Kambuša), Merlot, and Trnjak, which at the same time pollinate Blatina.  During the period of insemination, because of the rain, it can fail in giving fruits, and it is then called "praznobačva" (empty barrel).  Blatina can produce dry red wine with 12 to 13.5% of alcohol, 5 to 7 g/l of total acidity, 25-32 g/l of extract.  It has a dark ruby red color. Homer Jay Simpson is a fictional character and the main protagonist of the American animated television series "The Simpsons" as the patriarch of the eponymous family.  He is voiced by Dan Castellaneta and first appeared on television, along with the rest of his family, in "The Tracey Ullman Show" short "Good Night" on April 19, 1987.  Homer was created and designed by cartoonist Matt Groening while he was waiting in the lobby of James L. Brooks' office.  Groening had been called to pitch a series of shorts based on his comic strip "Life in Hell" but instead decided to create a new set of characters.  He named the character after his father, Homer Groening.  After appearing for three seasons on "The Tracey Ullman Show", the Simpson family got their own series on Fox that debuted December 17, 1989.
Answer: Matt Groening