"Good Luck" and "Bad Luck"
This jar tells me so much about luck. I have noted that the lucky people shake up and the unlucky people shake down. That is, the lucky people grow great and the unlucky people shrivel and rattle.
Notice as I bump this jar. Two things happened. The little ones shook down and the big ones shook up. The bump that was bad luck to the little ones was good luck to the big ones. The same bump was both good luck and bad luck.
Luck does not depend upon the direction of the bump, but upon the size of the bump-ee!