It's my trackball clicking thumb!! lol - I did some more
   chopping tonight -- it burns TONS of calories, and builds muscle
   like few other things can... there's even a whole school of
   exercise based around chopping wood, and working with a
   sledgehammer. (I actually bought a sledgehammer for that a few
   years ago - did it for a few weeks, but like most exercise
   programs, it peters out. I might grab the sledgehammer again and
   look up those workout videos. I think I need to find a large
   tractor tire though.... "