|Serbian rum is an imported alcoholic bottle beverage brought by Pierce to Troy and Abed's housewarming party. It's yet another supposedly expensive purchase made by Pierce to try and impress the study group. In the six different timelines that plays out inside Abed's imagination, the rum becomes one of many various items which factors into how certain scenarios play out. It's first and only appearance was in the Season Three episode "Remedial Chaos Theory".|
|In the study group's third year at Greendale, Troy and Abed moved in together and threw a housewarming party at their new apartment. When Pierce arrived at the party he brought not only a special gift for Troy but also a bottle of spirits for the occasion he called Serbian Rum. He bragged to Jeff that the imported drink was banned in it's homeland. Jeff drank some of the rum after learning that Troy and Abed intended on having the study group play "Yahtzee". The pizza delivery guy arrived while they are about to start the game and Jeff proposed that the roll of a die would determine who had to go downstairs to get the pizza. In the six divergent timelines, the bottle of rum is set on the coffee table and doesn't make an impact until Troy's scenario plays itself out.
|In this timeline, Annie slipped on a boulder from Abed's "Indiana Jones diorama" and fell onto the coffee table which had the rum on top of it. The rum was sent flying and crashed in front of the diorama shattering the bottle's content onto the floor. Meanwhile, Annie's gun discharged and shot Pierce in the leg; it was set it off accidentally by him kicking his housewarming gift into Annies purse. Britta existed the bathroom where she was smoking a joint after hearing all the commotion. Shocked at the situation, she accidentally dropped her lighted up joint onto the floor where the rum has spilled. It quickly ignited and caused a fire to break out in the apartment.
|Jeff tried to put the fire out with a blanket but it spread up his arm and across the floor to where the now uncovered Norwegian troll doll was. The aftermath of the timeline revealed that Jeff lost his arm, Pierce died from the gunshot wound, Annie was institutionalized, Troy suffered throat injuries after trying to eat the Troll doll while it was on fire and Shirley relapsed and was an alcoholic again. Abed, now calling himself "Evil Abed", declared this to be "The Darkest Timeline". ("Remedial Chaos Theory").
|The label on the bottle of Serbian rum is written in Cyrillic script, the writing language and alphabet used in the Balkans and Northern Eurasia. Translated the label reads "ГEHEPИЦ PYM" which is the English phrase "Generic rum" transliterated to Cyrillic. This indicates that Pierce probably overpaid for something he thought was a rare item.