Yep that’s my mum. My MIL is great and my mum is a nightmare.
In 1 month I’m back to work, working 2 x 14 hour days during the week then will do the odd night/weekend, which only the husband has to worry about. At present the plan is for MIL and mum to have my 2 x DD (will be 3.6 and 12m by then) 1 day a week.
The issue is... my mum used to look after DD1 when working before and apart from things like, letting her watch her iPad whilst eating, making her countless meals if she refused to eat, being terrible at smelling and changing her nappy regularly, forgetting to give her water, inviting family members I have nothing to do with round (that’s my husbands fav) and watching all her catch up programmes whilst DD1 sat on said iPad 
(sorry I’m a bit anti iPads for young kids can you tell..)... apart from all that she was okay... she used to take her to the zoo, farm, park etc and despite not always remembering to put suncream on her DD1 had a great time and survived. However, I think when I say survived that’s actually how I feel... I think my mum JUST about coped. I honestly don’t know how she’s going to cope with 2. She had built up no relationship with DD2 and despite promises of taking DD1 out for me once a week that never happened, and probably has seen her once a month - with me making the effort to come to her. She has NEVER in my 1 year off had both the girls together - she said she didn’t want to. Yet, now, my dad called me mean for questioning if my mum would be up for having them. Ufnrotaunely my MIL is doing the other day but she cannot do more as also looks after my niece.
I don’t know... she’s adamant she wants to have them and has gone out and got a car seat etc but has done that but not come to see us or spoken to me since Boxing Day I have such bad anxiety over this is.
Do I grin and bear it for 1 day a week or... or what? Has anyone told a family member they don’t think they’re up for looking after their children anymore? 
xx