Hmmm... there's the old Army/Marine rule:
If you can't eat it, f*** it, or kill it, salute it. If it don't salute back, paint it green
Or my favorite replies to a "thank you":
for the generic; no problem, I'd do the same for a white man
while holding the door for old ladies; well, mom raised one gentleman. I got tired of his attitude and kilt him