Shows the difference between UK and USA - in the latter I'm sure Ms Flowers would be reaching for that attorney, whereas here in Blighty it's more likely a call to Max Clifford.
That said, checking the instructions for my Wii-Fit (too many sodas/beers/pizzas to work off) and it does quite clearly warn you about losing balance. Slippery rugs are definite no-no.
Stupid question - but if it's a knocked nerve isn't there something that the medics can do? Joking/sniggering apart - this is bound to be somewhat of a disability.