Dirty teacher

I got the realisation today, when I was in 12th, i used to have a physics teacher , i never liked him because he used to say ridiculous things to me for no reason at all. I hated my whole school tbh, but he used to talk about s@x with boys of my class literally all the times, he was already married and had a child. Recalling him names me so sick 🤢,and is it common among boys to talk like that