Most of us who work on computers would know that the vast majority of users don't read the terms and conditions of software or websites, blindly clicking on the "i agree" box/button/link. sometimes evidence of this can been seen on a Stack Exchange Meta where a user whines about they've been suspended prompting the mods to point out that they violated the terms and conditions with their behavior, the user then tries to claim they didn't read/understand them but that is no defense (many episodes of Border Security shows people getting caught out in violating Customs Regulations by making false declarations and their defense is always they didn't understand)
When i was doing an update on my iPad Apple makes you re-agree to their terms and conditions before you can start the update and like anyone else i blindly agreed. likewise with Playstation Network updated their terms and conditions i just hit i agree so i could log in.
I got thinking, what stops a company updating their terms and conditions (or even having it at the very beginning) to take advantage of User Stupidity? for instance Apple updating their Terms and Conditions to indicate that my agreeing to the Terms and Conditions you give them access will go though the contents of any email account set up on an iPad...or Sony taking away any unused Playstation Network Wallet Money at the end of every finical year and denying access to any digital games that have not been downloaded in 6 months (regardless if they were paid for or freebies)