The correct response in this scenario is to challenge another family member (that you think you can beat) to an arm wrestle. If they lose, they are therefore also weaker than the 12 year old and can no longer talk shit.

Choosing the price per-customer like that should be illegal.

You know, this is a really messed up thing to post. You should be ashamed of yourself. How DARE you insinuate that humor and levity could be physical objects capable of leaving someone’s body? You fool. You absolute buffoon.