TG3K
Fractal Fanatic
I do the same. And if time is short (or there's a line into the bathroom) I use rubbing alcohol and wipe them off with a towel. I keep a small bottle of alcohol in my gig bag for cleaning my strings and guitars after each gig.I wash my hands. It helps keep the strings, fretboard and the back of the neck clean.
I do the same (minus the shot), usually as part of the hand-washing process. Back in the early '80s there were times on cold winter nights when I'd douse my left hand with alcohol and light it on fire, quickly shake it off to put out the flame, and then wipe it off with a towel. [Kids, don't try this at home.] I would do it at the beginning of the gig or end of a break, and would always have my back to the audience, trying to be subtle about the whole thing.In the winter I would run my hands under hot water to loosen them up. That and a shot of Johnny Walker.
Years later, I had moved to California from New Mexico and was not in the music biz anymore. One evening I was having a beer with a coworker who had also lived in NM in the past, and I told her about lighting my hand on fire. She got a surprised look on her face and said "I saw you do that!" Although we had never met until 10 years after I'd quit gigging, she had happened to be at one of our shows in NM in the '80s. She didn't remember anything about the band, but she remembered seeing the guitarist light his hand on fire during a break.