Murphy reloaded

Why is it that when working around old steel cable bracing systems, you can be ever so cautious, taping off damaged ends and all, yet somehow seemingly every time your new-ish climbing line manages to find an unravelled end of steel cable to run over and get damaged? Argh!

This would seem to me to be a variation on the theme of Murphy’s law: Anything that can go wrong, will go wrong. 

I would therefore like to propose following addendum: Anything sharp or damaging a line can run over, it will run over.