Grandmothers Recharge Well

A family purchases a home robot designed to look like a grandmum Their neighbours immediately buy a more expensivve model as the two families always try to up the other one Both grandmums start to terorize their families because they were set up to ensure the mums exercise the kids study etc Apart from that they start causing problems to the other family cut ropes with hanging clothes pierced tires etc Once they get to killing each other familys pets the parents get really worried about the safety of their kids The grannys later destroy each other while fighting and the families decide that theyll be better off without any robots Its some time since I saw this so the details may be off Mainly thanks to the design of the robots its rather a comedy than a horror Unless you are ten And a rather good comedy