Johnny and his new teacher

Johnny had a new teacher for his class and she looked very kind and loving. 

The next day she said that she wants to try out something new with the kids

So she decided to try out something from one of the psychology classes that she learned at university. 

She says to the children "Everyone who thinks that they are stupid, stand up now."

A good 2 minutes passed and after a little while, Johnny stands up.

The teacher asks him "why did you stand up Johnny? Do you really think you are stupid?"

Johnny replies "No Miss, but I hated seeing you standing all alone there all by yourself".