I remember one time a few years ago some dude in one of my college classes tried to make me look stupid. This is what happened:
I was in class and I had a pack of gum out and took a piece out, then this big amogy like guy comes up to me with some dominant body language I must say, and sticks his hand out expecting a piece. At this time I saw a perfect opportunity because the hottest girl in the class was sitting across watching all of this.
So back to him, he had his hand out and I said "what? You want a handshake or something?*everyone starts laughing*
Him: no, give me some gum.
Me: well I guess I'll let you take this off my hands (present my abc'd gum)
Him: I want a fresh one from the pack.
Me: well I could givenyou one if you bark like a dog for me.
Him: no.... me: alright fine no gum for you.
Him:.....woof! *everyone watching this bursts laughing* and he started to blush.
After watching that, the rest of the class my target kept opening me whenever the teacher wasn't talking.
That type of response is required when someone tries to make you look foolish.