My MIL isn't a bad one as such just a bit weird because she basically doesn't talk
Like seriously I've been with my husband for 16 years and could barely tell you anything about her, her likes, dislikes, personality etc because she never speaks. My FIL is very domineering (almost a bully I would say) and is very vocal about his ridiculously old fashioned views around women such as they shouldn't be entitled to opinions, to speak unless asked a direct q, and how their place is at home cooking and cleaning etc so think my MIL effectively lost her voice and confidence years ago. I dared voice an opinion in front of my FIL once and he responded by telling my husband (in front of me) he had to 'put me in my place and show me who's the boss'. It's kind of sad and I do feel sorry for her but it's also very awkward at times. Even now if I ask her her a question she'll reply with just a nod if possible or if not just a one word answer. I made my husband promise years ago never to leave me in any situations alone with her after it happened once and it was the longest most awkward 30mins ever with me just talking, talking, asking qs, talking some more to try and fill the awkward silence and just getting nods in response from her every so often.