It's Always Sunny In Philadelphia Episode?

What is the name of the episode where Frank, I think, gets his doctor to prescribe him a bunch of different meds. He takes too much and ends up in a mental hospital. When the drugs ware off he gets some big Indian guy to throw a water fountain through the window so he can escape(Pretty much like One Flew Over The CucKoo's nest). I am also pretty sure this was not the main story of the episode.