I was never afraid of disfellowshipped ones.
They never said why they were disfellowshipped, I asked why one man was df'd and I was just told not to talk to him.
Another brother was a close friend of my father. I knew he started smoking and he never tried to hide it. He claimed it was needed to lose weight. He died 8 years ago and his wife is now my stepmother.
A sister about five years older than me was df'd after she allowed a worldly man into her apartment. He slipped her drugs and raped her. I remember that night well. She was living in an apartment above ours and she came down to my dad screaming. The police were never called. Days later she moved away and she wasn't at the KH when the announcement was made.