what happens if a child proposes as a joke?

A woman can be betrothed, a woman can be married by giving her something of value, and it only [music] has to be worth a prutah, a nickel, penny. It's a very, very small amount. Kids are fascinated with this, and as a joke, they'll go over to a girl during recess and and say to their two friends, [music] cuz you have to have witnesses for marriage, "Hey, you guys be my witnesses." All right, they shove the the nickel or the piece of gum into the girl's hands, and the whole question is, does the woman need a get? Does she have to cover her hair? The usual answer B'nei Yisrael is that if it's very, very clear that it is a joke, and nobody understands it to be serious, so even if they went through the ceremony, it doesn't make it [music] marriage.