Does anyone's husbands curse way too much?!

I don't know what to do with him! Everywhere we go or around the house it's constant cursing every other word out of his mouth. It's not funny and it doesn't make him look attractive at all. I can't change him, but I can at least try to fix the problem. He laughs at a swear jar, tell him to stop he feeds into that and does it more for spite. The grocery store is the worst, I hate the looks I get because I value my morals...a 3yr old child down the cereal aisle does not need to hear him saying those kinds of words and the elderly couples looks are mortifying. I seriously feel everywhere I go people just constantly look at me and say why are you with somebody like that?