Ask for permission

You get up from your chair and as you walk up to the front of the class where your teacher is, you're nervous but determined.

You make sure to stand really close to him and say in a quiet whisper, "Sir, may I please have a hall pass to the bathroom?"

You teacher goes on teaching as if he hadn't heard you. You can hear a few of your classmates snicker and you turn back to your teacher with the same question. He ignores you still.

You stand there for about 2 minutes waiting for your jerk if a teacher to acknowledge your presence until you can't take it anymore. Standing up there like an idiot, everyone is staring at you.

You can either go back to your seat or just go to the bathroom without permission.