Is this show a comedy? Or one long horror movie? For this list, well be looking at the most despicable, heinous, and hysterically awful deeds the patrons of Paddys Pub have ever committed. Our countdown of the worst things the Its Always Sunny gang has ever done includes Setting Dee on Fire, The D.E.N.N.I.S. System, Watching Frank Choke, Pretending to Be Terrorists, and more! What do you think is the worst thing the Gang has done? Let us know in the comments!

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