Back in the days of land lines and telephone modems, I used to get fax calls from the local hospital. The doctor they were trying to reach had a 585- prefix. Mine was 588-. The last four were identical. I called that damned hospital a dozen times trying to get them to correct the issue, but kept receiving fax calls. So, I connected the computer to the land line, let it take the call, and faxed them all the pertinent, private, details of the patient that they had just sent to me, along with a notice that next time I would be forwarding the evidence to the proper authorities, not replying to them in a vain attempt to end the disruptions. That was the last time I ever got a fax call from them.
Thief and assassin for hire. Member in good standing of the Rogues Guild.