I didn't watch his show very often ... but, from what I saw, Colin Quinn seemed to be going a bit nutty and increasingly aggressive
... there was just something strange about his behavior, and I don't think it was part of the act ... remember when he took away the chairs and made all his guests stand up for the whole half hour? (until the producers objected) It reminded me of Roseanne's old talkshow (which was a total mental breakdown stretched slowly over a season)
