Stressed Teacher Cuts Off Students Braids

Everytime I think I've heard it all something else happens that makes me wonder what is happening in schools. A Milwaukee Public School teacher cut off one of her students braids because she kept playing with her hair. The only explanation that has been given is that the teacher was stressed.

I understand that teachers are having to deal with more students in classrooms, more problem students and less parental involvement. But teachers more and more seem to be finding inappropriate resolutions to address issues. Look at this video and tell me what you think? Do you think this teacher should be disciplined?