I've decided that tomorrow I'm going to flash my teacher.
You're kidding, right? Why would you want to flash them?
I think he's hot!
I see you have a romantic interest in your teacher, but you can't expose yourself in your classroom. You may get expelled or even arrested.
There's no way that will happen.
It could definitely happen, because flashing yourself is certainly against school rules. Plus you can't have any sort of relationship with your teacher, so I really don't know what you hope to gain from it.