Why are so many Olympians covered in large red circles?

By Emma Ailes, BBC News, 9/08/2016. Online available at

Why are so many Olympians covered in large red circles? - BBC News

AI mum, you see these are like temporary tattoos.

you know mum talking about the tattoos I have two eyes tattooed on my buttocks, yes, they are for my protection, look out for back stabbers.

No, I don't wear clothes to cover it, they are always out looking for back stabbers. 😁 

I know we need a drink, stick the kettle on please.