Well, this has been going on with me for a while, I don't know if it's truly supernatural or divine or what, but every weekend when I try to start my lawnmower, I put fresh gas in it, and make sure the spark plug is not fouled, check the oil etc.
Then I prime it a few times, give the starter cord a yank, and nothing happens. So I try again. Still nothing. I prime it again, and yank the cord. Nothing. At this point I start to get pissed off and usually yell "Jesus ******* Christ!", and then on the next pull, it always starts.
Freaky, huh?