Well, I have to admit to having attempted to stomp a few from time to time. They have a habit of showing up usually when I'm working under one of my Caterpillars, and they're pretty resilient to being whacked with a 3/4" wrench. They don't like PB Blaster much either, but pop pretty quick when encountering oxy-acetylene.

Typically I'm a live-n-let-live kinda guy, except when I'm in a confined space!