It's Always Sunny In Philadelphia Season 12: 10 Funniest Moments

Undoubtedly the funniest scene of the season is the climax of what was also the single best episode of the season; as it's time to revisit The Gang Goes To A Water Park. There's so much at play in this moment that you're liable to hurt yourself from laughing so hard.

Frank and Charlie have sneaked their way onto a massive water slide, which has no running water due to the fact that it is not open yet. Franks starts down it, only to immediately regret it as the piercing squeak of skin sliding against hot, dry PVC echoes throughout the park while he screams; with the viewer having a comically brilliant vantage point.

Frank then spills a large amount of blood into the pool, which sends everyone into a chaotic frenzy; as he had gone around the entire day claiming to have AIDS so he'd be allowed to skip the lines. It's at this point when that hilarious, trademark chaos that Sunny is known for begins to pop up; which is contrasted by the lifeguard who nonchalantly clears the pool as if this happened all the time.

Mac and Dee then enter the fray, having finally escaped the water slide they had been trapped in. Their victory celebration is cut short as they are greeted with panicked screams about the pool being infected.

It's the kind of scene that only Sunny could make funny, and they did so with monumental results.

Share your favourite moments from Season 12 down in the comments.