a pissed off cop. "You're a smart ass, aren't you?"
How do you answer that, if you say "yes" then you are confirming his assessment, if you say "no" then that's the answer all smart asses give!
Only thing I can think of is to say "I don't think I am, are you?"
(I didn't say the last two words at the time - always later that I come up with what I SHOULD have said).