I've never really seen a Rot Grubs that I've ever liked. Wait, that's a joke, son.
JoeTheLawyer left me a voicemail over on the Tavern Chat podcast (and I'll be putting that episode up later tonight) about, specifically out Tim (Gothridge Manor) using rot grubs to cut down on Joe digging through every piece of garbage in a session looking for loot. And therein lies my issue with rot grubs. They aren't really an adversary. Much like Green Slime, they are more trap or poison than predator.
Here's their description:
Rot grubs are occasionally found in heaps of offal or dung. They are rarelyYep the cure can kill you. I've changed my mind. They are worse than poison...
found in ceilings, walls, or floors. These small creatures will viciously burrow
into any living flesh which touches them, for they greatly enjoy such fare to
dine upon. The victim must immediately apply flame to the wound (1-6 hit
points damage per application) or have a cure disease spell cast upon him.
Otherwise, the rot grubs will burrow to the heart and kill their host in