I had to replace a cable on my first pair of boots because I would support the board with my back foot on the chair, and I wasn't very careful about it. Occasionally the board edge would hit the cable on the top of my foot. Over time it cut some strands and the cable frayed. I replaced it before it went completely, but it was a lesson about being careful with that.
I told my kids, "Someday, you'll have kids of your own." One of them said, "So will you."
-- Rodney Dangerfield.