Last night on 'It's Always Sunny in Philadelphia' (Thurs., 10PM ET on FX) the gang decided to attend their high school reunion and, expected, it didn;t work out so well for thm.

Mac and Frank had an unpleasant flashback to their teenage years when they were followed into the bathroom by the formerly "cool kids" from their class. Adriano gives Mac and atomic wedgie, while Frank is ambushed by Sweet Dee. Meanwhile, bully Brad gets a nasty surprise when he whips off Charlie's underpants.