I enjoyed this sign at Plockton station, up in the Highlands, the other day. Useful information, it says: There is no taxi rank in the vicinity of this station. There are no bus stops near this station. Good job I had a bike, then.
And this one, displayed on the window of a Northern Rail service between Harrogate and York. It lists the lengths the company will go to to protect their staff against abuse: Whether it's swearing, shouting or spitting, we will do everything in our power to stop anti-social behaviour and protect our people in the course of their duties.
Well, if it takes swearing, shouting or spitting to protect your people, that's what you have to do.