Like I always say, when you're on the correct path in life - the devil will always come to visit. Clear signs of possession from my personal experience, and characters to generally steer clear of: - The owner (usually a male) who looks exactly like his dog. Needs no explanation. - A talkative old hag with a broom or rake, usually cleaning the streets. And why witches are often depicted with broomsticks, as a mockery of purity and cleanliness. - Old fishermen with no fish in their bucket. They're fishing but not for what you think they are. Solitudinous characters around bodies of water in general are better left alone. - Two women who are not related but look extremely alike and share the same mannerisms, haircut, clothing, et cetera. The "persuasive party".