The self-professed "degenerate grad students" at BayBlab have a post listing ways to tell you're a lab rat. "You know you're a lab rat when..." includes some truly hilarious (and dead-on) items, such as "You use the word 'aliquot' in regular sentences," "You refer to your children as the F1," and "You don't fear rodents, rodents fear you." GTO is a little embarrassed to admit how long we spent laughing over this list -- be sure to check it out.