There is a discussion going on on Dorothy_L, the mystery listserv, about what people dislike as plot devices.
I will not read Femjep novels (Women in jeopardy). I don't like the books, and I don't like the TV shows and movies in which women are prey, constantly in danger.
But, I loved mystery writer Eileen Dreyer's comments about what she dislikes. I liked her phrase "Too stupid to live." Here's her comment,
"My biggest wall-banger, though, is that TSTL(too stupid to live)
heroine, who, against all advice, just knows she has
to put herself in danger without back-up, or, worse, has been
traumatized several times already for not learning that
lesson, and keeps doing it. My feeling is that the bad guy should just
shoot her. She is, TSTL."