Besides their tendency to judge a persons trustworthiness by their meeting comments and their dress and grooming (no beard, short hair= good) the other danger is the magical belief that Jehovah would never allow such a thing to happen in the Congregation.
Because of their tendency to be overly trusting with one another, JW's are also sitting ducks for any JW
related business scam and for pick pockets at the assemblies where they
leave their belongings lying around on seats.
I have a male relative who was hired by a "sister" to do chores when he was 14. When it was time to pay him, she told him to come into the bedroom where her purse was. She proceeded to teach him the facts of life and it sent him off the rails...changed his whole life in very bad way for a time. It sickened him that she could sit in the meetings with her husband and kids and answer and give talks while he felt so horrible about himself. He was too ashamed to tell anyone for fear of the shame it would bring his JW mother, after all JW boys are supposed to be like Joseph and run away when they are seduced. Instead, he ran away from home and lived on the streets and found odd jobs. He joined the army as soon as he was old enough and somehow managed to pull himself together. He never got to go to high school or college but he did get married and raise a nice family (non JW of corse) His wife despises JW's for what they did to her husband.