Is my science teacher a perv or not??? Please HELP me!!!!?

I am in 7th grade and i have science everyday as most of you probably do. my science teach keeps rubbing mine and my frendz back, starting down low towards my ***. Eww... but anyways... last year he got fired for bein incarserated for bein a perv. this one girl waz singin smack dat and he said dont sing dat unless i can do it 4 you!!! Ewww... Do you think he is a perv or wat do you think??? PLEASE HELP!!!!