My dad has minor dementia and his doctor had his driver's license revoked. He continued to drive, so at the urging of his doctor and other health professionals I took his keys. He wants his keys back and swears he needs them so friends and neighbors can drive him. I live 5 hrs away so I can't monitor his activities except through neighbors. His short term memory is so bad that every time he wants to go somewhere he sits in his truck and tries all his house keys in the ignition. However he is still able to remember at least once a day that I took them and gives me a harassing phone call. Tired of being the bad guy....should I give him the keys and trust that he will find able drivers? Would I be exposing myself to liability if I did so?