Yeah, seeing you are doing the ones with no proof of purchase needed it's going to be pretty hard to prove you didn't buy it, especially when most of the settlements have a five or more year range for the stuff bought. Also they aren't going to waste their time and money bringing you to court over $10-$100 especially when they can't prove you didn't buy the stuff. But that kind of goes back to the whole filing under no proof of purchase part again.
But yeah, what Butcher said if you want to get right down to it.