eh, go for it

Rings a bell, actually.

I once said to an old bike shop/racer guy that maybe I should sit high because I read that Indurain goes a bit higher for a time-trial (I think). The bike shop guy misunderstood me, and shouted:
"don't go comparing yourself to Indurain, you dickhead, because you're not as good as him."

Prick....pissed me off at the time