I used to bite the skin off my fingers but at least I didn't spit in my god damn keyboard.
I did this too. You have got to admit, and yes I do not mind if you take this awkwardly, but I used to bite the skin off my fingers so much cause it was chewy and kind hard and was like a waxy gummy thing once you get deep enough. Then I started developing lizard skin and thought to myself. "Man, maybe I should stop."