I am caring for my father with Alzheimers and he has been living with me for 5 months. My ex-sister-in -law in his home state calls him and evidently inflames any negative feelings he may have. It is kind of a game because if my husband and I go shopping or out in the evenings he will secretly call her long distance for a talk. Afterwards, he becomes very sneaky and tries to self medicate himself or calls people trying to conduct business (which he has royally botched up in the past). I am looking for an opinion on restricting his phone use when I am not around to avoid this situation and its effects. Also, there is no point in talking to my ex sister in law as she doesn't care for me and hates the fact that my father is here with me.