I always like the line in that scene where he asks for a receipt (since it's on his expense account). I do the same with a bank card, even if it's something tiny from the convenience store.

At the end of EXERCISE IN FATALITY, Milo sarcastically calls Columbo's evidence "cigar ashes." It just occurred to me, but Marshall does his best to make that LITERAL.

I'm sorry, I of course meant to put that last remark in the MIND OVER MAYHEM thread.