I subbed today for a high school debate/English teacher.
Some days, when a kid starts telling all his friends that he hates me, I feel like I'm doing my job right.
If you're told that screwing around all hour will result in your project being due a day earlier, and you then decide to sit with your buddies and make weird noises, bang your fist on the table, and yell at people, then you really shouldn't be mad at ME for the consequences. If anything, you should THANK me for being nice enough to give you a heads up.
I've also decided that I must be on the top of this school's call this for subs. I keep a pretty close eye on the job posting board, but I keep getting calls for jobs at this school before I even see them online. That must just mean that I'm pretty awesome.