There are actually a couple of camps on this. There's the camp that says that it's a harmless prank and there's a camp (in which I have pitched my tent) that says you shouldn't prank a child because children aren't yet mature enough to process the good-naturedness of it.

Yes, this boy's mother meant no harm, but the child was clearly upset and scared that he had done something extraordinarily wrong. Hey, if someone actually convinced me I'd purchased a $50,000 car by accident, I'd be upset, too.

But, you be the judge: