Safety Wire Plies. If you have ever used a set for more than 15 minutes you'll know why. The damn things love to pinch the crap out of your squeezing hand.
I second that. I worked 737 Final assy. Installing all the fuel related components in the center stub of 737s, then had to safety wire all the fasteners in the wheel well. Three times a week.
I worked plane #12 to 753, 737-800's thats a lot of wire.
I hate the lawn mower more than the weed eater. My back yard is 50x100 square, with a fence perimeter. I have a push mower.