Yes, I asked it once to my mom. She replied that by doing this we showed that we weren't weak and we could spit on demons and evils with force.
Technically, we show that we're powerful enough and we can't be trapped into the negative thoughts.
I always saw the brighter side of these superstitions. Like stopping for a minute or two doesn't cost us life.
Suppose, you're in a hurry to your office and due to the cat you just start thinking about bad omens and become extra careful while driving your car, eventually you drive slowly and reach your office, if it wasn't for the cat, you could drive faster and could possibly meet an accident.
Interesting. I like your optimism.
reply