Did you ever use psychology on your kids?

The grandkids were here and did some work around the house. I wanted to pay them, but then the oldest boy (13 but acts like 7) piped up and said “Zoey’s piggy bank just disappeared!”
That sounded suspect to me. I wouldn’t put it past the 13 year old to steal it and play dumb…especially when Dad said it had $67 in it!
I said “You know what? The minute Zoey’s piggy bank is found I’ll get everyone’s money to them!”
That way I wasn’t pointing any fingers or accusing and getting denials and all that crap.
That was Saturday.
Wadda ya know the bank showed up the next day!