I like that comeback Mark....it get the point across without causing too much hostility.
I posted a story a while back...either here or CW about some barback at a cigar-friendly bar giving me a hard time. As soon as he said "I don't mean to be a dick, but...." I knew it was over. I eneded up ripping him a new one and scaring the poor girl pouring my drink. It was my 5th or 6th jack and ginger so I wasn't taking shit off anyone at that point :assaultri
I agrree with caudio51...it really depends on the attitude of the person asking you to put it out....