Have snowcraig pick him up from school. Might be awhile.
Tell the family you are NOT proud of them. Except the daughter, you are leading her from the dark side. Good job.He is 15. My entire family except for me are Mizzou fans. I am trying to train my younger children to love ISU though. My 11 year old daughter does wear her ISU shirt quite often and wanted to go to a game with me this year.
+thisTake you daughter to the Missouri game and leave your son at home.
My son decided to wear a Mizzou shirt when we go out to eat tonight after I forbade him.
Embarrass him in public. A lot. Take it to extreme lengths. Making out with his mother in public is not a bad idea. Next time you take him to school, make sure everyone is watching and give him a big hug and kiss. To these things until he doesn't wear the shirt anymore.