For you, it's a joke. For that teacher, it's a livelihood, a career, and a passion that is at risk by this act. (If your state hasn't lost its waiver, lucky you--teachers see what's happening in other states and are getting ready.)
I think that what the OP meant was that the teacher should have given advance notice to the parent and student before pulling a stunt like that. I would not be happy if the teacher surprised my son with an end of grade test even though I know that he can handle it very well.
