The other problem with the misrung breakfast analogy is that the breakfast has an agreed-upon cost. When you ordered the breakfast, you agreed to pay that cost. If she gives you back the wrong change, you’ve not met your end of the transaction, simple as that.
If the cashier says, “I own this place, and I think you’re cute, and I’m going to give you a discount,” and then undercharges you, then you’ve got a similar deal: in this situation, when she hands you too much change and says, “there’s your discount,” then you’ve received a verbal agreement that she’s giving you a discretionary amount of money. If, next time you’re in the restaurant, she says, “Oops! I meant to give you a quarter back, not $0.57,” then you may or may not give her some money back: you’re certainly not obligated to do so.
If, Cheesesteak and others, the guy has an ethical right to receive his money back, what are the parameters for this right? Suppose I give a $10 tip on a meal, then go out to my car and find out that there’s a $5 ticket on my car – can I go back inside and demand $5 back?
Suppose I tip 15% on a meal, but later find out that my best friend got dumped by the waiter. Can I go back and demand my money back?
When I go back, what if I claim it was a mistake my tipping 15%, and tell the waiter I’d only intended to tip 5%. Is the waiter under an obligation to return two-thirds of the tip?
How exactly does this principle work? To what degree does the tip remain the provisional property of the tipper? when does this provision expire? How does the waiter determine whether the tipper has a legitimate reason for demanding the tip back, and is not simply making up excuses?
A transfer of property is a transfer of property. Sometimes, such as with the selling of a house, it’s complicated. Fortunately, this is a simple, cut-and-dried transfer.
Daniel