The next time you go to a used game store, make sure YOU pop open that case and take a look at what's inside before passing it off to your kid. I know it can be a battle to look at a game before your child does, but it could be the difference between life and death.
This mother in Tallahassee experienced the unthinkable when she let her son inspect the newly purchased games: a bag of METH popped out! Thankfully her 11 year old son brought it to her, rather than mess with it or just leave it laying around for his 3 year old sister to discover.