I think your mums more an abusive arse than a CF @Nevergoingtobemrsjones glad you are NC with her!
My sister..
A friend who is a fabulous and wonderful illustrator was asking for videos of cats making odd noises - my sister has a cat that makes odd noises. I asked if she had any videos as friend is putting together a book of cat behaviour.
Sisters first question 'will I get paid'...
She delivers food. She meets a lot of dogs belonging to customers who would benefit from some training (tbh, both the customers and the dogs). I used to go to peoples homes and train dogs.
She asked if she could take some of my biz cards and offer them to customers if they seemed open to the idea. I said yes but not to push it, I would rather clients sought me out (which they did, and that generally works better for me!) than be pushed my way...
Then she said...
'.... and I'll get a 50% cut?'...
No.
Gimmied and stropped to come to an annual event with me one year - industry related for me and a chance to meet people I work with remotely, people interested in some of the stuff I do etc, some behind the scenes press/media stuff.
I usually do this on my own as up until covid, I could - and large crowds I found easier to negotiate by myself rather than constantly trying to keep tabs on someone else AND try not to get flattened by people not expecting to see a wheelchair (thus, not looking DOWN!)...
So she came along...
Got in the way. Interrupted my conversations with people to explain her presence to them (they really didn't care), explain she's not involved in the industry but is of course terribly knowledgeable (not) about it because shes my sister... talked over me, wasted their time and baffled some of them entirely.
She repeatedly told people it was astonishing that they'd want to talk to ME because im JUST WIDDLIN'DIDDLIN and it's baffling to her that anyone would find the thing I do interesting/fun/etc...
She also kept telling people that it was 'technically her day off' but she was my carer so she was still 'working'... (she wasn't she has never ever done care for me and I didn't need it then!) in a 'oh I am such a saint' kind of way. SO embarrassing!
Then as I was trying to review some footage for production team, she starts telling our cameraman how to do his job and commenting on the film we have (which needs to be broadcast in 10 minutes so really NO time for fucking about)... no one asked her, in fact I'd told her to go and get a coffee and chill for ten minutes... I genuinely thought he was going to yeet her out of the room!
Then on the way home... she asks me if I can submit a claim to Access to Work for her time that day - she was never hired for that day, and I only claimed AtW payments for driving/PA work for overnights, which she knew!
She doesn't come with me to such things any more and I have no further need for a PA who can't do care work now anyway so... fortunately those days are over!
Despite all this we do get on... just, in a strategically managed way and she has NOTHING to do with my work now in ANY way whatsoever!