I'm rght along there with Mike E.....
I'm a sucker for "doing the right thing", I'd give it back without hesitation. Of course, knowing that no good deed goes unpunished, the rest of my life would be full of great opportunities that I would have to miss out on due to lack of exactly $100,000
Piers probably takes cash. If not, 7-11 does, and you can get a money order. My gunsmith takes cash. The "we sell new guns at cost, because we make $$ on other aspects of the business" store @ the south end of town takes cash. the black-plastic (ABS) porta-safe I made takes cash. Darryl the (Diesel) power-broker takes cash... ... ... ..... and so does the rightful owner :{