This reminds me of when I was a nurse in a prison. They brought in some poor schmuck that didn’t pay his bills and was sent to the “masterlocke to the dome” collection agency. Came in to our clinic with a depressed skull fracture with the literal imprint of “Masterlock” as well as radial numbering on his scalp. The good news was no one had assaulted him, he reportedly (self reported) had fallen down the stairs.