Cellphone Miseries

Ok. So I've been noticing this more and more lately. Cell phones.
and the immeadiate and deadly rude use of it in a public place. Particularly in my store. More to the point, when they're at the cash register, with me. Ok. So first I go through the 'is it me?' phases. Do I stink? Have they been here before, and I just didn't have enough stimulating conversation for them? Am I just plain creepy? These and other questions will inevitably pop into my brain when confronted with me losing a chance for small talk to a piece of coloured plastic electronickery. And, do you know, I just love being Told to pust said merchandise into a bag, or being Told to get certain said merchandise. Because when any action is put to me when the customer is only half paying attention, or is put to me as a side thought deterred from his more important conversation about supper, and who he/she/it saw last night, that action becomes a demand, a telling to, and not a request. and that irks me to no end. So my course of action? Talk as loudly to the customer as I can, while he is on the phone, so that if he can not tell the importance of conversing with a flesh-and-blood person instead of a voice carried through satellite waves, then at least the person on the other line will have enough sense to ask to call later. or stop talking. The other thing I do is wait. just wait. I wait until they're done their conversation, or until they have enough sense to put the guy on hold, or the phone down, and apologise. Sometimes I help the people behind them, or clean things, but mostly I just stare and wait. So really. I ask any of you who read this. If you happen upon a store and are just coming to the checkout when the phone rings,
PUT THE BLOODY THING DOWN!
thank-you.