The stuff I agree too just to play video games, I'm surprised I still have legal rights sometimes...
http://www.southparkstudios.com/full-episodes/s15e01-humance...
I had a friend who was a contract lawyer, and pointed out several clauses in my wireless contract and my internet contract. It was pretty eye opening.
Needless to say, you'd be surprised what you agree to when you sign contracts:
"Please be aware that we may change your wireless device's software, applications or programming remotely, without notice."
Which mean they update your modem (which is not yours btw, it's a part of your ISP infrastructure) for you, not that ominous IMO.