Guys, if you were in a recreation center change room, in underwear or swimming trunks but shirtless, and a handsome, moderately slim man in his early twenties wearing shorts but no shirt walked to 3 feet from you smiling amicably, said "hey, uh, it's ok if you say no, but are you ticklish?" and as he said "you" he pointed to your waist, what would you say and do? Choose the best answer: