No.
We salted a customers house last July - unfortunately she fell over and broke her hip, after we'd left.
Anyway when we got a call from the Ambulancechasers (Bodgit and Scarper Solicitors) we proudly claimed that it couldnt have been our fault as we'd salted her pathway - they hung up relucatantly, I could tell they hung their heads in shame by the tone of their voice.
But we wern't having any of it, after all we'd gritted so there couldn't have been any frost on the ground could there.