I love this episode because it really goes deep into how Charlie truly feels and worries his brother that he's always criticizing, even though he abandons him on the freeway it's not far from the bar based on the fact that Alan walked there. The goof to me is something the editor should have caught immediately. After Alan walks to bar two girls show up and ask what's going on and Alan moans about his issues and Amy says "what's wrong Alan"? He never said his name? Just stands out and I enjoy the oversight. When Charlie actually visits the therapist it shows that he really is concerned about Alan and honestly the whole premise is Charlie can't stand his brother yet he's willing to get therapy because of his personal meltdown. Great episode btw.