Hypothetical. Like you just found it. Would you spend it? Invest it? Give it to someone to make their day? Put it back in your Mother-in-Law's wallet before she noticed it was missing? Dream big and share what you would do if you ever found ten dollars.
I would probably put it in my wallet and forget about it until my wife made me pay for groceries one day. So it'd probably turn into some kale or rice pizza crust or something.
I'd hand it to someone that looks dirty and poor, like FinD, and tell him to buy some pig feed with it. Then tip my cap and walk away.
Sweet. A bag of pig feed costs $8.69 + tax, which means the pigs can eat and I can get a bonus Yo-hoo. Best. Day. Ever.
In Boston, that would almost buy a six-pack of beer. Guess I'd hope the liquor store would let me buy 5 beers.