I started humming songs at some point. Don't remember when, but I started at some point. I didn't wanna risk draining my phone's battery even more just so I could listen to music while out on patrol, but the silence of the frozen wastes I found myself in was killing my morale. So, this was the compromise the practical side of my brain made with the bored out of my mind side of my brain. Sure, I got the lyrics a little jumbled up in my head sometimes, but I never had a perfect memory to begin with.