What I've learned driving trucks off-road in the army, or what I've been told, is not to keep your thumbs inside the wheel because when you drive in a bump you might get them broken when the wheel swings around, and it sure can do that.
Meanwhile Scavierge will once again laugh in evil manner in their layer and check off one part of their achievements list. Next on the list is a flying thumb. Should watch out because I'm running even higher ff-values...
Speedy healing btw.