Thiago is a really dangerous criminal, and your best friend, Thiago got arrested years ago

One day you are at school, sitting in class when your teacher says:

Teacher: class a criminal will visit us today, be respectfull

Classmate: ohhh interesting!!

You don't seems to care but then you see Thiago walk in

Thiago: Hi class! he notices you Oh hi old friend!!

The whole class is pure shock