When I see my teacher at the grocery store

That happened to me once. And then he started talking to my Dad.

This is too true. I remember once I saw my teacher at the mall when I was with my friend so we both hid behind a clothes rack only to knock it over and have it almost land on our teacher.

I work as the cashier... :(

My brother is the exact opposite he makes point to go and to speak to them.. He is sixteen and apparently has no fear.