Have you ever had a pushover teacher/professor?

I’ve and and she was one of the WORST teachers I’ve ever had! The worst. When some students were acting up and doing shit they weren’t supposed to do, she just ignored it and continued teaching. She didn’t even yell or discipline them! I was in I believe in junior year. So one time I didn’t understand a question in one of the science classes and she just told me to look it up on the computer or look in the books. I asked her if she can explain it but she got an attitude and scolded that she can’t figure it everything and I need to learn on my own. I just left. I mean I’m not trying to get her to do it for me and figure it out for me I just wanted her to explain so I can understand.
She let students disrespect her and cussing at her and she didn’t do anything about it. She let them run the class I want them I even yelled at the class and some of us were trying to work! Yes I did. Worst teacher ever and I have no respect for her none of us do. She got fired.