Have judges yelled at you?

They say it happens not uncommonly on /r/lawyertalk, getting "dressed down" by a judge, but I (law student) have never seen it in a PD case. I'm in a small city and almost all the judges seem pretty respectful and smart.

This is wild to me. This is a line of work where our #1 skill is supposed to be knowing how to conduct yourself professionally. I guess judges are the exception because that's what 0 accountability does to a person.