1. I have determined that the real-life band that sounds most like Spinal Tap is Deep Purple. They have similar fuzzy guitar work (compare the beginning of Purple's "Space Truckin'" with Tap's "Sex Farm") and keyboard parts. By the way, did you know that Spinal Tap invented the "devil horns" sign? Here's their explanation.
2. The good news is that I think all the insects in my apartment are dead. The bad news is that I think they all drowned.