Yeah it was a work of genius. My sense of humour tends to be a little on the surreal side, so it really appealed to that. Completely agree about Alexei Sayle, it felt like he'd just be talking forever and it didn't really fit into the show otherwise (and not in a good way, like a lot of the other irrelevant stuff). I genuinely never noticed the 5th housemate though! Or if I did, I probably just assumed it was Neil cos of the hair. I only learned that was a thing a few years ago and I was really shocked by it.