OOOH! I FIGURED IT OUT!

[conuly]

My left-hand-pinky-bottom-knuckle is callused on the inside because that's the knuckle I bite!

Gosh, you'd think that sort of thing would be easier to figure out.

Oh, go donate money at my linky thingy.

Comments

[lady-angelina.livejournal.com]

Oh mai, a literal knuckle-biter! XD But yeah... I'd been getting weird calluses myself after I started playing the Nintendo DS. It's just not something you tend to think about until something brings it to your attention.