We all want to keep our children safe, and that's perfectly understandable. You don't let your toddler ride on the hood of the car or use your jackhammer without supervision. When they have the kickboxing matches in your back yard, you don't let them glue the glass to their fists (well, you don't let their opponents do it).
But it's possible to take even something like child safety too far. For instance, we have the people who design school supplies that are bullet and knife proof, such as this $200 backpack.
We guess a bulletproof backpack would pay off the day someone shoots you in the back during the few minutes out of the day when you actually have the backpack on, in the same way that having retractable ice skates embedded in the soles of your shoes will pay off the one time you're attacked by Mr. Freeze.
Yes, we're aware that some children do get shot from time to time. But if you're that paranoid about your child's potential to be shot at school it may behoove you to transfer to a better school district rather than outfitting them with a backpack and spending your days praying that, if and when someone runs amok with a firearm, they have the good taste to shoot your child in the one, backpack-sized area that happens to be protected.
Also, we're pretty sure the kids that need this the worst are the children of the owners of the bed-mounted gun rack up there.