You have to assume any man you work for or with, any man in a position of authority over you, any man you date, any man friends of someone you date, and sometimes even men within your own family may rape you.
The reality is, most rapes are committed by men we know, not a stranger on the street.
The loaded gun or rattlesnake analogy HAS to come into play because of that. You assume the gun is loaded with the safety off until you have verified that it's not. You assume any snake you see is a rattlesnake (poisonous) until you have observed it closely enough and long enough to determine that it is not. That means you have to learn what the characteristics of a rattlesnake (poisonous snakes) are.