I rarely think of a witty comment quick enough, in response to some weird shoutout to me during a ride.
One time, though, a small group of men walked along the sidewalk during the lunch hour near my office.
My ride just started winding down, with my office a half mile away. One of the dudes made a loud cat-call at me.
Within a split second, I simply said, "Sorry, I'm not that sort of man!" His buddies all broke out in laughter.