And more gravel, silver wire for cheap jewelry he'll never sell, and perhaps the biggest thing I can't understand; Someone else's mortgage payments/bills. He fancies himself a business-type person, but makes the strangest, most ass-backwards "investments" I've ever heard of. You can't just hand over money to people, and expect they'll ever return a fucking thing. That's why people invented contracts, so you can broker a deal and have both parties held accountable. Tom just figures fuck it, handshake and it's good. It's not the caveman era, that's not how people work. Yet, for some reason, despite him getting fucked over repeatedly in handshake deals (not to mention fucking other people over as well) he continues to do so. It makes absolutely no sense. He's been burned before from it, and he's clearly aware of the shaky nature or he wouldn't have ripped off Arianna when he did. Yet, he still thinks he has the upper hand.
People with literal Downs syndrome have a better understanding of deal-making.