Years ago, when my daughter was young, I did it. I took her to the playground and offered her a snack with peanuts in it -- a peanut butter granola bar, say -- and let her wander off. I didn't watch and I didn't pick up after her. And inevitably, I'm sure, she dropped some; maybe on the ground, maybe on a piece of playground equipment. A little peanut time bomb, lying there casually waiting for someone to pick it up.
Knowing what I know now, the memory haunts me. Did a little toddler come along and, with his penchant to put everything in his mouth, pick it up and give it a try? Did my carelessness cause an innocent child to suffer? Am I paying now, in some kind of karmic way, for my wrongs?