To want my weekends as relaxation time not babysitting other people's kids time

[I8toys]

Myself and DH work 5 days per week and weekends are precious. We have two ds 12 and 10. DH's younger brother and SIL have a child 18 months old. BIL can't hold down a job - gets bored and relies on FIL for most things. He recently started a new job full time and she works full time. Toddler in nursery 5 days per week.

MIL and FIL look after the baby on Saturdays - they either go their house or BIL/SIL go to MIL/FIL' house. This is every Saturday and even when the child is ill - they will go to MIL/FIL house - mid week whatever. Fine whatever they want to do. However MIL/FIL have now said they will only go to BIL/SIL house to look after child because when they go to MIL/FIL house they either go to bed and go shopping - no interaction with toddler at all.

MIL/FIL are away on a cruise at the moment. We get a call - can we come over this weekend? FFS AIBU to not want to go entertain this? We had them a couple of weeks ago - they came on a Sunday when my parents were there - were fed Sunday lunch and I ended up looking after the toddler. I don't want it to be a regular occurrence and I feel they need to look after their own kid occasionally - maybe take them out somewhere. Prepared to be told I'm unreasonable.

Reminds me of this

This Be The Verse

They you up, your mum and dad.
They may not mean to, but they do.
They fill you with the faults they had
And add some extra, just for you.

But they were **ed up in their turn
By fools in old-style hats and coats,
Who half the time were soppy-stern
And half at one another's throats.

Man hands on misery to man.
It deepens like a coastal shelf.
Get out as early as you can,
And don't have any kids yourself

Should say "they f* you up, your mum and dad"

Valentine2 i dont even know how it got so bad. But when they come here they eat so much its like they are never fed so if im really honest i do prefer when they come here so i know they are fed and washed and looked after.