If you're choking in a restaurant you can just say the magic words, 'Heimlich maneuver,' and all will be well. Trouble is, it's difficult to say 'Heimlich maneuver' when you're choking to death.
We know the people with techno-fear. They're there, on the computer, going; What... oh... oh... I... I've wiped the file? Oh damn. What... I've wiped all the files?? I've wiped the internet?!? Oh no... I don't even have a modem!