I think there's something to the concept of maintaining order amongst high schoolers by periodically shocking them off balance. My Dad taught high school for 13 years & used that "shock" tactic on me when I was a rebellious high schooler...
just when I thought I knew exactly what his responses would be to any given situation, and therefore how to "prepare" (my story) to him... he'd react in a totally unexpected way that would shock me off my platform shoes & leave me SPEECHLESS (which I'm sure was his goal) 
Will you send me his phone number?
My toughest class is my Advanced Band, and when I left today I said something to the effect of, "See you tomorrow." I heard someone mutter, "Gawd...I hope not!"
I couldn't help but laugh. They've had me in front of them 3 times now, and now know that I'm not going to change. Those boys are a royal pain in the ar$e right now, but I really think that we're going to have funn soon. I can't help but love them!
Ooh-- a quick story and I'll quit boring y'all with my work. There is one kid in there who has punched my buttons since he first saw me. He's a grayt drummer, and he's obviously bright. Today I didn't even let them get instruments out--I told them that they'll be learning theory this semester, like it or not. Of course he was right back at me with, "Why do I have to learn about pitches and intervals and key signatures? I'm a drummer!" I told him to can it--he is going to be more than some idiot who hit things with sticks when I was finished with him; he is going to be a musician.
Halfway through the class he starts answering all the questions I tossed at them--correctly! I looked at him and laughed...
It's so much FUNN to catch them learning something!