Did you read the message from the guy who gets messages at all hours of the day and night regarding serious matters at work? Maybe he is using an n900 for this precisely because it is one of the very few phones that can actually be used to fix a wide variety of problems involving computers from almost anywhere in the world. It may not be as grave as a telemarketer calling a diplomatic hotline reserved for imminent nuclear war, but no one required to receive emergency messages should have to endure junk messages or calls.

I suppose that you think pickpockets are not much of a problem if they don't take much and tell you first.