My sister is bringing her best friend to my dad's rehab care plan meeting because "she has been through this before and knows what questions to ask." We have also been through this before with my mother. I have a list of questions. I don't think a friend should be brought to this meeting because she is not family and not part of the care plan going forward. My sister did not run this by any of us to see if there were any objections. This ticks me off. Am I wrong to be ticked off? I have requested that this friend hold her questions until all family members have asked theirs.