In Goldsboro, Wal-Mart is a hopping place on weekends and it's pretty crowded compared to the off hours in which we usually go out for groceries. I did my best to ignore the density (I do _not_ like crowds) as we wound up behind a slow-moving woman wrangling a cart and four kids as we headed toward housewares.
Two of the kids were being awfully quiet for being about 5-6 years old. It didn't set off any flags in my head -- they were dressed as if they'd come from church, so maybe they were just well behaved? -- until one of them spun around with something in his hand and BAM! I couldn't see.
Turns out the woman gave the kids laser pointers to play with. It doesn't strike me as a particularly bright thing to do as a general principle, but DO NOT GIVE LASER POINTERS TO YOUR CHILDREN TO PLAY WITH IN A BUSY STORE!
I think this counts as another reason why I think people should have to meet licensing standards to have children. Incidentally, most schools consider laser pointers to be contraband.