A bro within a past cong used all of his literature donation $$$ to buy his breakfasts and lunches on a daily basis from various fast-food establishments. Also, he had called over to his basement apartment (he lived with a couple of non-dub relatives) some of the young boys in the cong. It was discovered around 6 years later that he was a pedo--but an elduh and 2 MSs who he got along with very well didn't push the investigation until 1 of the young kids tried to commit suicide! The cong had a marking talk and he moved away from the area to another township; from there it was rumored that he relocated outside the US.
Further, a sister and her 3 children (1 girl and 2 boys) bullied a few other quiet/respectable dubs to have them squat in their homes. The kicker was that this sister and her kids lived in an apartment within a not-so-nice neighborhood, which was within another Circuit! They visited a plethora of congs to befriend and find out how various dubs were living. If the dubs were easy-going folks and had decent-to-very nice digs, they would visit them and hold hostage the apartment or house--until those dubs got off their asses to call the BOEs and the cops to get these crazies out and off their properties!