This is Sargeant *** call off your dogs!!

Yes, the title is a direct quote from a conversation I overheard on the bus last night. I, unlike the perpetrator, have left out the name involved.
There was a bearded man in camouflage trousers on the bus, and he proceeded to have three conversations on his mobile phone, right there on public transport, at full volume (can we use our indoor voices on the bus please......). It would appear that he was in the Military and was trying to sort out some kind of problem,regarding somebody who was supposed to go to a support and counseling type of appointment, relating to their recent return from deployment, and they hadn't turned up and there was a great deal of trouble as a result. This man was trying to find out what had happened, using the "I can't help you, unless you help me" method. And yes, he actually finished with the above sentence; I'm assuming it was in a figurative sense, and that having dogs set upon you is not an actual punishment for missing an appointment.
Now, as interesting as this was, to me and my fellow bus companions, I can't help thinking it might help if people waited until they were somewhere private before they made calls of this nature. Although some of my funniest moments have been spent listening in to the personal conversations of random strangers, only hearing one side of the discussion, and trying to imagine what the other party was saying to garner such responses, do we REALLY need to make that call right there and at that minute? Can it not wait? Don't get me wrong, I love my smartphone; after all I couldn't take sneaky photos of all those strangely dressed Walmartians, or weird people/situations/sights that greet me frequently on my daily commute if I didn't have my trusty Iphone, but I don't feel the need to make phone calls in public unless it's some kind of emergency. I prefer it if nobody but me knows my own personal business (bit tricky, this, when you are a Brit in the US on a Visa with Immigration breathing down your neck and asking all manner of personal questions, but that's another story) and there's NO WAY I need an audience of strangers.
Then again, I suppose it would be a dull and boring journey home if there wasn't at least one commuter shouting juicy tidbits of gossip into that tiny slim box we all seem to have become so dependant on.
So, if you ARE one of those millions who insist on making calls in a loud voice in public, can you at least use this modern technological marvel to say something other than "Hi it's me, I'm on the bus."
I and my humble Blog are forever in your debt...