"I'll swallow your soul! I'll swallow your soul!" don't think I ever played it death match. We did do a lot of Duke3d but the first fps a friend and I played over modem with a friend was ROTT (Rise of The Triads).
I admit I played Doom but not really it's sequels. I can't remember if it was Hexen or Heretic but it definitely cracked me up when the first thing I typed was idkfa which like apparently most folks who were expected to try that ended up standing there like an idiot without any weapons or armor and I'm PRETTY sure all the creatures immediately knew were I was.
In Blood, say .. the *adventurous* types end up with that stupid little hand strangling you because you were taunting it too much. Did anyone figure out a way to get it off without dying? (Was always curious, all I think we figured out was burning ourselves but pretty sure we and the hand die).