Not a teacher but the sub made the handicap classmate who has muscle, joint and vision complications go grab his textbook from his home room. He's not completely helpless but when it comes to heavy things, he needs help.
Classmates home room was half way across campus and the required book consists of 5 large text volumes because they're specifically made for his poor vision. He can't wear glasses either due to complications. I offered to help because I'm usually the one that goes and grabs it for him during normal class but the sub yelled at me saying he knows my kind and I'm just trying to get out of class. Sub told me he's not there to play games and for me to quit it before he sends me off to the principal's office. Needless to say the entire class was shocked. Classmate came back with another student from the homeroom requesting that next time the sub send someone else to grab the books because my classmate can't carry it by himself. When my usual teacher came back we requested the sub not return because of what he said to us and did to classmate. My teacher wrote an email to the principal about it and that was the end of that.