Today I found out (the hard way) why they say that the thumb is the main reason of our civilization.
I had an "accident" yesterday. One computer fell on the side of my right thumb, practically hitting me only at the spot where the finger and the nail form a corner.
Although the insolent computer probably suffered more damage than me, my nail kind of got unstuck off the finger on that spot. At that time, I didn't feel anything since the wound was still fresh. Today since I woke up, my thumb is swollen and hurts like crazy when any force greater than... half newton (or 50 gramms) is applied on it.
Common everyday activities I find difficult to complete:
Drink water
Use a pen
Unlock a door
Use my mobile phone (it's slide-up)
Type fast (need to hit space with left hand now...)
(Un)plug anything
Ban bots (ok ok, this is just an excuse, I admit!)
Thumb - Brain: 1 - 0