bent axle

Hi,
My mate just bent his axle on his new GTR with a pretty innocuous looking slide round a grit corner... he went to slide it out and didn't make it but didn't look like a high pressure slide at all. But it bent his axle from where it came out the hanger. He wasn't going very fast and is a lightweight, only slight thing was it was half grit to tarmac which may have stopped the slide I suppose. Could it be a faulty axle?

 

Impossible Food hamburgers would be a start.