I had a friend who liked to sulk around in a trench coat. He bought a grocery store donut and promptly tossed the receipt.
He was soon stopped by grocery security for theft. After some hassle they tracked down his receipt and let him go, but yeah that’s what donut receipts are for.
Rob Thomson skated across the US starting in 2006. Also from Switzerland to China.
http://14degrees.org/
I have a photo from that trip handing up poster size in my house. A random waterfall panorama.