It really would depend on the age. While my first thought is what the guy did in the pic you put up, I doubt I would go to such extremes. I plan on telling my children that I can have access to anything they ever send or recieve without them ever knowing and hope it prevents it. I'm sure it won't. When the time comes if they are 17 there isn't much I can do except start making them pay their own cell bill because I won't support it. I dread the day when my children start this!