There is a difference between good practice and superstitions. Trying to verbalize the difference would take more effort than its worth right now.
This morning I did a cat rescue. Bobo made me look like the hero! As I was putting on my harness my handsaw moved. Marv's words rang in my ears from over 35 years ago, 'You always climb with a handsaw.' The saw went onto my knee. As it turns out there was one limb that needed cutting. I could have broken it off. That would have broken one of my other superstitions. 'Stubs will come back to haunt you.'
In keeping with the maritime behavior of touching some part of the ship to ward off bad luck, I touch wood, my noggin, anytime I need to duck under some spiritual protection!