A little "10 things we didn't know this time last week" snippet says:

A new Network Rail directive that maintenance workers will have to wear hard hats on the railways at all times will cost £1m in new hats and £3m in signs reminding workers to wear them.

One wonders how many signs this is and if people are so thick that they needed to be reminded every 5 meters, are they too thick to be charged with maintaining the rails? Will they even be capable of reading the signs, in fact?

I'll whip up a few signs for them...