Thats just dick to do, but is a good trick. I thoguht i was bad when i found out that the coke machine infront of giant eagle accepted my dollar and let me just empty the machine. I had about 30 pops on top of my groceries which i paid a dollar for lol. Came in handy because i jsut left them in my truck and drank them when i was thristy. And then used them for spitters.