Dear Carol: Dad had a stroke three months ago at the age of 89. Before the stroke Dad lived in a retirement center and I’d take care of his medications and take him out occasionally. He’s now in a very nice nursing home on what we thought would be a temporary basis, for rehab. However, he’s become terribly paranoid about his caregivers, even though this is a highly rated facility and we’ve checked it out carefully. He thinks he has to pay the aides and we can’t convince him otherwise.