I was on a train with a mate when mobile phones first became fairly common.
Opposite where we were sitting, a fellow traveller pulled out something about the size of a building brick, clamped it to his ear and started shouting into it; presumably so that people would notice that he had one and be impressed. I wasn't!
When he had finished his conversation my mate asked "Have you ever thought of getting one of those?" to which I replied "No way! I have a secretary to answer my calls!"
At this point, the tosspot put his phone into a briefcase and didn't get it out for the rest of the journey!