this happens due to movement in the x-ray. Althought it could also be that this guy's foot actually snapped off.

I like the implication they needed an entire X-ray to figure that out

"MY FOOT SNAPPED IN HALF IT'S LITERALLY SEVERED FROM MY BODY OH MY F**KING GOD I'M BLEEDING OUT"
"Let's X-Ray to be sure..."

its to make sure insurance can deny coverage properly

just use an ice pack

just rub some dirt on it
maybe get a band aid