Fangyland

1- locate his/her car

2- apply shaving cream

3- put paper toilet on top of shaving cream

4- If it's sunny or the shaving cream have time to dry a bit before somebody clean up, you'll have a very angry and newly poor teacher

Why not respect his opinion and pwn him with intuitive and informed counter arguments?

What, you don't have the capability or wit to out-debate him or convince him that he's not necessarily right?

I could count the times someone's opinion has been changed in a debate with the fingers on one of my hands.