School Teachers

OK, this is completely opposite of my last post but I need to vent. T and Dub come home from school and tell me about their day, their classes, their friends and their teachers. For the most part everything goes well and they have no complaints except for a couple of their teachers. Why is it that some teachers think its OK to cuss and use filthy language in front of these kids in class? Isn't it bad enough that kids who ride the bus use this language but then when the boys get to school, their teachers are doing it as well? Doesn't that send the message to the other kids that its OK to do this? I feel like emailing the principal and venting but I know that nothing would be done about it or that my kids may be singled out by that teacher. I've had problems before with teachers and the school sides with the teacher no matter how wrong the teacher may be. Boy, between Prop 8 and this and teachers who send home waaaaay to much homework every night, I could just scream! What to do? What to do?