I believe cell-phones are the new drug of choice for urbanites. Thanks to the highly successful 'war on drugs' (insert sarcasm here), folks are more concerned with technology than cocaine these days.
Use them phones responsibly, and you won't ever have to go to rehab. Abuse them, you must get in the program.
A few weeks of scrubbing toilets will make you understand how annoying you are to answer your phone at movies, restaurants, etc. Teenagers at theatres warn people about this problem, but do they listen? Some do, some do not. Make your decision, I say to the rude. Joe, you are a fine man indeed (sincerely).
I did see the movie 'Phone Booth' a couple of weeks ago, and really liked the cell phone imagery.