Stupid moves:

The girl next door is using our toilet even though it is quite obviously not working correctly. I'm not here when it overflows.

Never flirt with a girl and tell her you are going to come hang out, then change your mind because your other love interest is coming over to "watch a movie." Better yet, even if you do commit this stupid move, don't tell the girl the REAL reason you're not coming over. Learn to lie.

Don't sit in your car making out with your boyfriend across from a house full of my relatives. Poor neighbor girl. Every person in my house had to stare out the window to see why there was a car parked across the street.

Don't be late to class. (Oops.)