In America we say "good arm". I find it interesting how sayings like this are said differently in various regions of the world.

Shoulda threw it back at dad, to show what kinda arm you have!

That's how you raise psychopaths. Sucks to be the teaching remedy.

must.....resist..... the....urge...to say.....HEADSHOT

The only solution that works is to beat up the parent in front of the child. It's a form of discipline that they are both lacking and desperately need. It tends to be so traumatic for the parent, that they experience an attitude shift that's fairly dramatic.

Dude. I would have thanked that kid.

You should get a giant tip for putting up with that crap

Some people should not have kids.

She'll be getting in trouble with the law when she's a teen and her dad will be sitting there stumped, wondering where it all went wrong.

You should have saud "Thanks free candy!"