Years ago, I happened on an urban spelunking website that featured the rule of two stupid things: If you're already doing one stupid thing, don't do a second. Like, if you're already breaking and entering, don't have a bag of pot. If you're already wearing a wacky chainsaw clown suit, don't argue with the cop. I thought it was great advice for life.
--from a
Metafilter thread on urban exploration. Sometime, I'll post a bunch of links to snazzy sites along these lines.