I have a friend who constantly tries to insult me but it always fails on his part anyway one of my favorite insults he attempted to do was when i dyed my hair red at one point and he said this to me...

"Don't go set off the fire alarms with your hair fire head" I found that to be one of the funniest things ever and to be a smart ass i made an email/sn with the name of fire head in it. So in a way it back fired on him and yet we both still laugh at this till this day.

What about you?