Terry, I haven't had to try that one out - but I am sure that if this became a problem, you could print out the appropriate thread and take it with you. The store would have probably received other complaints by that time too.
I have this buddy, Flynn, who says that he can get people inside of computers. Seems a bit nuts, but the guy is pretty smart. He did invent SPACE PARANOIDS after all.
I don't think that will happen as most people like myself will want to not sit in front of a PC monitor to watch a full length movie for long periods of time but I did read about Netflix is flirting with that idea.