I am about to start a small side stream of income that involves picking up used items on Craigslist from locals in my neighborhood. I want to hire a driver to go around picking the stuff up. In order for him to do so, I would need to give him my cash to pay the sellers. The cash will range anywhere from 200-1000 dollars depending on the item. I don't want the guy to disappear with my money. How can I protect myself? The only thing I can think of is some kind of collateral. The only problem with this is he might give me fake collateral eventually meaning if I take his credit card at the beginning of a shift every day, he might give me a fake credit card one day. Any ideas?