Times like this, you get real superstitious. I've knocked wood so many times, we got a letter from our neighborhood association instructing us to take care of our woodpecker problem.
Coupled with this is the fact that I don't know the rules of that many superstitions. Something about tossing salt over your shoulder. Or not looking at a full moon through the trees unless its over your left shoulder. So, I just go through my day, randomly tossing salt, hitting wood or a wood by-product, and twitching around to look at things backward. My neighbors think I either have epilepsy or full-body Tourettes.
The bigger issue is when you're not sure which way to go with superstition. Superstition-wise, leaving any possible logic out of it, does one talk about all eventualities, in the belief that if you talk about it, you ward it off? Kind of like buying tons of life insurance to guard against your death. Or should one not mention any negative outcomes, in order to not "open the door" to the possibility?
I vaguely remember a friend's Catholic Italian grandmother spitting when certain things were said. But I don't remember what kinds of things.
Oh great. Salt, wood, turn around and spit. Now my neighbors are sure to call the guys with the butterfly nets.