John,
I thought we covered this concept.
Do you make sure your partners ball is on the inside of the OB stakes on that wayward drive?
Or make sure they don't ground the club in the fairway bunker 50 yards away?
Or that their ball is actually embedded in the fairway?
Or that its actually on the cart path or the sprinkler head or drain before taking that free drop?
Or actually inside the hole of the burrowing animal?
etc, etc.
Proximity and trust is legacy, been there since the dawn of the game!
P.S. I hadn't thought about it that way in relation to my wife and kids, I will certainly give that a good think over!