I think I had a brief thought of Confident Xander being evil. I haven't seen a lot of Red Dwarf but I realized I had seen the episode you mentioned when you gave the "Oxygen is for losers!" line. :) But my brain was on Star Trek at the time. I never thought he was Toth.

That opening sequence makes me absolutely cringe. Not because it's bad, but because I feel Xander's pain. It's a double ow when he tries to emulate Riley rubbing Buffy's shoulders and gets the pained response from Anya. Damn it woman, you're making me think things about Xander/Anya I didn't want to. :)