LuckyLindey
says
Why does every math teacher think it's funny to play "does the interpreter really have to sign everything I say?"
No, I will pass your class by only be able to understand a tenth. 
Mommygetz
says
I know it's not funny, but your post made me chuckle...
No, it's totally funny. It's just annoying when they do it. And confusing that no one but math teachers do it.