You Can Buy Ultra Violet Trousers

There's a condition where some people can see ultra violet light, which is er, very strange. A rumor has it that this was used in the second world war by military intelligence to signal for german boats. Here's a true thing, you can buy ultra violet trousers. And as soon as you walk into a club party in your pats, tey'r glowing in all sorts of different colours. Well, i hope you don't say that sentence when you walk to a cob.