"Do not drop litter on the train. Please use the tramps provided"
"Warning, this is an emergency. I've chipped a nail"
We'd like to remind our American tourist friends that you are almost certainly talking too loud."
"Passengers should note that the bearded gentleman's rucksack contains the following items only: Some sandwiches, a library card and a picture of a bare ankle and is no cause for alarm"
"Passengers are reminded that a smile is actually a friendship signal and not a sign of weakness"
"Would the passenger in the pinstripe suit and £1000 glasses who obviously works in the media, please take one step forward on to the track as the train arrives. Thank you."
"Passengers are reminded that, like all voiceover artists, I probably look nothing like you imagine and may turn out to be somewhat of a disappointment"
"Would passengers filling in answers on the Sudokus please accept that they're just crosswords for the unimaginative and are not in any way more impressive just because they contain numbers"