Well, if mine threw a tantrum at home, they got one whack on the fanny to break the pattern, then got sent to their rooms where they could yell all they wanted, but I didn't have to listen to them. They knew better than to do it in public. They figured the same thing would happen, but they never pushed it. If they ever even got close to doing it, they got taken to the car and sent to their rooms when we got home.
I'm still trying to figure out how to apply all this to the tantrums on the forum ;~D