Not really a quote but a scene:
When they are visiting the prison and Michael walks up and Barry Zuckercorn gives him a big hug and then says "Oh man I'm glad to see you...probably shouldn't get too close though I have an itch you wouldn't believe"
Then later same thing with George Michael. He scratches a boil or something on his head and asks Michael "Does this look contagious?" "Oh, hiya kiddo!" as he smacks GM in the chest