You’d be forgiven for assuming that the hairdryers in male changing rooms were rarely used.

But it seems that men in swimming pool locker rooms are taking advantage of the facilities - and not just on their heads. Instead, in a bizarre new habit, they're using communal hairdryers on their nether regions.

Now one Icelandic pool is hitting back. The problem has become so bad that staff were forced to ask men to stop using the dryers on their groins.

They've even created a poster, showing an elderly man hairdrying his testicles and with a large red X covering the image.

It was issued after local swimmer Haraldur Jónasson wrote a letter of complaint that was published in a local newspaper.