Okay, so my father-in-law is having some serious medical conditions right now. Some are physical, ie. dropping things, falling over, and so on. Some are not physical , and those are the ones that are keeping the family from talking to him much. However, with the physical, I believe he shouldn't be driving. I'm worried that he could have a spell, and crank the wheel into a minivan or something, killing or injuring someone.
Is there some way I can get someone to talk to him, as he won't listen to the family right now, that can either convince him or enforce the fact that he shouldn't drive? I'm thinking since I know about the problem, I'm just as liable as him should something happen, but I'm actually afraid right now of my physical wellbeing should I confront him. He has threatened me with harm, using a gun.