A couple of things I've learned over the years ...
1. Never tell an animal rescue that you plan on breeding anything.
2. Never tell a pet store that the rodents you are buying are for feeders.
3. Never laughingly tell a bartendar that you're "so loaded that you can't see straight".
4. Never tell a woman that she looks "ok" or "alright".
5. When asked if you've been drinking, never tell a cop that you've had a couple of beers but your "fine".
6. Never tell a stipper that you just got paid.
7. Never get involved in a land war in Asia.
8. And finally, but only slightly less well-known is this: Never go in against a Sicilian when death is on the line!
(anybody catch it?)
-adam