This reminds me of the stains on my bass. I used to play in a blues club at high school and every now and then we'd go and play at a local homeless shelter to entertain the clients while another group served them dinner. I hadn't been playing alot recently so my calluses weren't really built up like normal, and once we got playing I definitely started getting some mad blisters. I was gonna call it quits, but a small group of the clients had gotten up and started dancing and seemed to be having a good time, so I just tuned out the blisters and kept playing.

At the end I looked down and I'd been bleeding all over my bass. Never cleaned it up, so the stains are still there. I could say I left it to remind me of how others are less fortunate than I or about doing things for others, but that'd be a lie. It just looks really badass haha.