I started working as a teacher (adults) at a company at the same time as another woman. I'd never taught before, they hired me based on interview involving demonstration of my teaching, the fact that I had an M.A and just generally liking me. I actually loved that job but unfortunately the company went bust.
Another woman started at the same time as me and I am SURE she lied on her CV. Not just the little exaggerations that a lot of people do that don't really matter, but honestly she was useless.
Students didn't understand her teaching, she didn't know how to mark, she took weeks and weeks to pick up on even tiny 'rules' involving how the marking system worked or how the actual company programs worked, and she often repeated the same mistake again and again. She used to contact me often asking for help with teaching methods, and up until then I'd never taught a day in my life. She didn't know how to use 'zoom' either and often asked me how to login and things like that. She'd apparently taught for over twenty years and had so many teaching qualifications and advanced certificates.
Not only that, she'd often be not working when she was supposed to be. We mostly worked from home, teaching a couple of days a week either online or in person so most of our work was marking, content writing and other bits like interviewing new students or other jobs involved in the course. When she wasn't acutally teaching, she'd often be rang by another member of staff and she'd say 'Oh I'll ring you back in an hour, I'm just in town' or 'Sorry didn't answer, I was at the chippy! I mean, we got a lunch hour? But this was just at random times of the day when she should have been available.
My boss rang me one day to ask if I was able to commute to X city (I was, only up the road from me) and I asked her why, and she said she was (finally) fed up of Miss Useless and did I want her job.
Then I had to redo all of her marking, which really annoyed me as I couldn't read her bloody writing.