A couple of things: hitting your head, such as Kramer did, can give you what's called "neglect" where you literally don't know your right or your left exists. I've worked with people that old 'see' have of the food on their plate and don't cross the midline to find the rest of the food...or they dress only half of their body as Kramer did!
Howard Stern is a television talk show host and radio deejay in the New York/New Jersey area. He is known for his crude remarks to just about everybody and I have seen shows where he made guests cry and leave the stage. He also uses lots of big-chested women wearing next to nothing to do things like bring him a glass of water. In my opinion, he's not very funny...but he's been on radio & TV in NY/NJ for years. His behavior toward Jerry Seinfeld was typical...although mild compared to what I've heard & seen him do.
Just a little info... Thanks!