apparently the guy was working and accidentally slipped onto the air hose. Hmmm how does that happen!! more like one of them said lets play a prank and squirt some air up his bum... His face looks a picture too! Mind you, given the situation you can understand the grimace!
http://www.dailymail.co.uk/news/art...ed-air-hose-accidentally-lodged-backside.html
http://www.dailymail.co.uk/news/art...ed-air-hose-accidentally-lodged-backside.html