It's Always Sunny in Philadelphia Season 8 Episode 5
The Gang Gets Analyzed
Dee's therapist ordered her to have a dinner to hash out the issues she has with the rest of The Gang, but the whole affair falls apart and regresses into an all-out brawl over who will do the dishes. Dee places the blame on the therapist and invites The Gang to her office to finally determine who should do the dishes. The therapist goes along with the plan, but ultimately can't break through to each member.
We start off with Mac whose mood swings lead the therapist to believe he has reverse body dysmorphia and maybe some closet homosexuality. We move on to Charlie whom the therapist dubs 'surprisingly well-adjusted' considering his non-traditional upbringing. Frank gives us a glimpse of his upbringing, which explains his erratic behavior.
Meanwhile, Dennis is in denial mode - refusing to believe he needs help from the therapist. Instead, he tries to pose as her peer - in profession and academia, not age - but his flaws soon rise to the surface. Dee follows in her brother's footsteps - denying and lying until she reveals her hang-up, daddy issues and her need to be accepted and complimented.
So, who should do the dishes? The answer is clear.