I thought the same thing.
It's not a matter of whether the original poster is "glad that he is not your kid". If the kid is young, put them somewhere out of reach. If the kid is older, tell them to NOT TOUCH your disks. Simple as that.
I don't have any kids and a TON of store bought games and yet, I have no need to backup my games. Why? Because I take care of my disks.
As to the different types of protection methods, Virushack mentioned A-Ray's scanner and it works great.