It's one of those signs you are so used to seeing, that you don't even question it.
But people are just finding out what the 'WC' sign outside bathrooms actually means and they are flabbergasted.
Chances are if you've ever had to use the loo while out and about in a public place, you'll have seen the letters WC on the door, but you are unlikely to have questioned what the two letters actually stand for.
