My [40M] 7 year old 2nd grade stepson has starting telling his teachers/principals “Shut the Fuck up, Bitch” when he gets mad.

We have never heard this kind of language from him, we don’t use this type of language, but I don’t really care where he heard it, that’s not the problem right now.The problem is that he gets angry and says these things in front of the class and he’s going to get suspended or expelled because it’s happening all the time now. He’s getting the reaction he wants and he’s escalating it, how do we talk to him about this?On a side note, everyone in our neighborhood knows now and thinks we are horrible people. via /r/Parenting https://ift.tt/2K0BScW