C doesn't like you, but it is a libertarian programming language. If you want to check for something, you go right ahead, but if you didn't, well, it's not going to help you. If you'd wanted to check for that, you would have.
Madness string 1322
People misunderstand glitter. Treat it as a hazardous substance, not unlike a can of polyurethane, and generally you will have good results. Follow up by sealing it with polyurethane after for full effectiveness. It is not that it is not a child's toy, but that children miss half the experience, as they are not the ones getting glitter sealed to their skin with polyurethane for the better part of a week. They are fully capable of learning proper handling, and with this knowledge, nobody need deal with loose glitter ever again.