There once was a woman with Lupus. She was told 8 years ago that she only had 5 years left to live. The lupus was destroying her, literally eating her from the inside out. She suddenly went into remission, something that none of the doctors had predicted. She looked around and found a specialist. This woman soon discovered that this Doctor was warm and chatty, and soon the woman would gently probe the doctor about how she felt about the politics and the world in general. The doctor turned out to be a prepper. This topic was talked about by the two on many visits, and soon the Doctor told the woman that no matter what happens, if this doctor was forced to stop working, that the Doctor would treat this woman for trade or free if the Doctor was able.
Sometimes talking carefully about your views of the world can lead to a secure friendship and medical care if SHTF.