I don’t know if this form of therapy is practiced anywhere but it’s not a bad idea. The client uses his session as a way to try out new material – humor. In the case of Dr. Katz, he just sat there, mostly with a blank look on his face, giving just enough feedback to keep the comic going. If you like the dry kind of humor, this is great television. In this clip, on YouTube, Dr. Katz's son has a talk with him.