Amazon is really easy to scam
If you buy from Amazon and you say that your item has been stolen off your porch, they will refund you literally like 5 hours later. Amazon is so gullible. 
I seriously doubt they won't catch on if you keep doing that.
What was it you got refunded for anyway?
So how much money did you get?
Umm, I wouldn't suggest you do that. They will check into that and make you pay for it and even take you to small claims.
Also, the UPS dude is going to end up having to pay for it...
Umm, they can file a claim. The UPS dude is RESPONSIBLE for getting it to you, in your hand. If they can't they have to put it in a safe place. IK people who work at UPS/Fedex, and I've talked to the UPS dude who delivers shit to me.
Watch you get caught nigga!
Stop being a little bitch and pay for your shit. Someone will still end up paying for your shit in the end. (either with their job.. i.e. write ups, or small claims, or the driver)