I'm wearing one of my favorite t-shirts. It's black and has this on the front:
And this on the back:
I bought the shirt last semester. I had this horrible teacher that even the other professors didn't like. While I was studying for the final, amonkie linked me to the web comic xkcd. I started looking around and as soon as I saw the shirt, I bought it because we had covered regular expressions in the class. The professor was so horrible that it was enough reason for me to buy that shirt and wear it in for the final just so I could be an ass. My classmates thought it was hysterical.