I had a roommate in law school that worshiped Genesis. Also some obscure band related to Genesis that I can't recall. But, I despise Genesis and think their only possible redeeming quality is Peter Gabriel, so it made for some tough moments when it came to picking music to play.
Same here. One of my hallmates at Maryland played Genesis. All. The. Time. I recently got together with 2 other hallmates from that time and we all agreed we hated Genesis thanks to Bob.
As regards Bob and his proclivities, I enjoyed his hallucinogens much more than I enjoyed Genesis.