Bicycle repair
Wow. I haven't dropped a bottom bracket in a while (I'm guessing '89?). There are a lot of those little ball bearings now aren't there?
Especially frustrating when your pull the axle while the bike is upside down, and several bearings plunge into the bicycle's tubing -- ping, ding, ching-ching...
Then you turn the bike right side up, carefully over a large pan to catch the ball bearings, but they bounce right onto the floor anyway and show how of kilter you home is. (Actually useful when finding the bearings.)
Wow, a family of moths once lived my seat tube.