Back in the day, when they were the size of housebricks, I were on t'train to Cornwall and a self-important twerp was ringing all and sundry, opening, very loudly, every time, with, "Hello, I'm on the train".
Finally, with everyone in the carriage pretty much cheezed off, he dialled up another number, and, before he could get any further than, "Hello..." about a dozen of us, by some miracle of group telepathy, called out simultaneously, "He's on the Train!".
A blessed silence prevailed thereafter.