maybe i am old-fashioned, but while i don't have a problem with cursing in english at all, if a russian guy used a lot of mat when we first met i would see him as a very unclassy guy who did not respect women. i dated my boyfriend for six months before he felt comfortable enough to even teach me mat, despite the fact that he uses a lot of curse words when he speaks to me in english.

i would definitely never use it in anything for school! ШОК!