In some situations like when the teachers are just in a bad mood and take small things OTT and just crazy is not ok, but I mean if someone is misbehaving really bad then yeah they should be shouted out. My teacher told me today he wants corporal punishment back, everyone just told him if a teacher hit them they would hit the teacher back which is most likely true.

But yeah, if they have actually done something wrong and serious they should be shouted at.