We don't think it has ever happened to us so we don't know how we'd react, but on a very rare occasion with the right circumstances, you could end up with the gym to yourself. 

If you ever do, then you'd have to mark the occasion with some form of celebratory dance, which is exactly what Willem Alberts, a back-rower from the Springboks who's nursing a hamstring injury did when it happened to him recently. 

Featuring the unmistakable sound of the Guru Josh Project, Alberts shows off all his moves, and judging by this, he must be some man to face in a dance off.