I had a client who had this happen to him. The police said they HAVE to arrest someone. He was the one who called the police on his ex-wife to get her out of his house. He was the one who was arrested. Point is; always think about consequences of calling the police. I think this is good advice, and something that people don't always think about.
When someone dies of old age, calling the police is not the best option either. They show up looking for foul play. Better to call the hospice.
Anyway, getting a bit off-topic here.