"Shut up and make me a sandwich."

"I don't have to listen to you, go get the man in charge."

Those are some of the comments one Halifax teacher says she has heard from some of her male students in recent years. Christine Emberley said the comments range from sarcastic sniping about a woman's place in society to "grotesquely sexual" remarks. Sometimes, the students refuse to make eye contact, listen or acknowledge her. 

"It's frightening," she said. 

Emberley has been teaching for nearly two decades…