I had a ruptured disc in my back in 2001. It's the absolute second worse pain I have ever dealt with. I wouldn't wish it on anybody. Having the pain WITH accompanying numbness is somehow worse than just the pain.
Seeing as how both my parents have had issues with disintegrating bones in their back (and most likely I'm going to get it due to heredity), I second what StaggerLee said - I wouldn't wish it on anyone.
I seem to be the only one, but when Show said he'd been advised not to hurt Brock, I assumed it was by Stephanie. Perhaps she doesn't think Brock can beat Show either, but she doesn't want Show ruining the main event at Survivor Series either.