Wow you are amazing to do all you do for them! Definitely your house your rules!
They shouldn’t have decided to have another child until able to support themselves either!
I would talk to them all and point out how they have upset you and that now keeping a four year old in line will be much harder.
Unbelievably dangerous actions on their half too!
90th birthday mini hamper ideas!
Do you still have all your own teeth?