Nothing against any critters. Well, I personally can't stand small, inbred flatfaced, pocket-sized dogs. You know, the yapping kind? Pomerians are ok, but the others just scare me. Argghh...
I bet it's the dead gerbils.
Yeah, pretty much.
Edit: I feel your pain, but my lack of any knowledge on the matter prevents me from helping you out. Sorry, hope you can handle it.