Alright - next time I would like to see an infestation of wamp rats. Maybe they were bitten by rhakgouls and turned into RAT-ghouls...har har.

Players will be running around with wamp rats hanging off or maybe a big pack following them, incumbering their movement speed exponentially. Yeah, that's about the only thing I can think of that would be more annoying than vomiting every 2 minutes or randomly exploding.