It's Always Sunny In Philadelphia: 10 Worst Things The Gang Has Ever Done
2. Arson
Season nine finale “The Gang Squashes Their Beefs” is a celebration of the many mistakes of Mac, Dee, Charlie, Frank, and Dennis. Over the run of the show they’ve made a plethora of enemies across Philadelphia, and it’s now impacting on their day to day life - they can’t go to their favourite video rental place or sandwich shop, as they’re staffed by their foes.
In the spirit of Thanksgiving, they decide to invite over their former sparring partners in an effort to let bygones be bygones. The McPoyles, Bill Ponderosa, and Gail The Snail are among the motley crew that congregate at Mac and Dennis’ apartment for a somewhat on the nose settling of differences (they have a slate to wipe clean, and a hatchet to bury).
The plan seems to be working, until a fire (started by Frank) puts a halt to proceedings. With the gang concluding the whole thing is too much like hard work, they ditch the apartment and bolt the door shut, reasoning that their guests can utilise the fire escape. While no one dies, the callousness exhibited here is a cut above for the gang, even if the reasoning behind it was actually quite noble!