MIL left my baby home alone.

Hey guys so my daughter goes over her grandmas every weekend for the whole weekend, she’s 2.5 months old. Well we arrived to her house on Sunday to pick up our baby and guys..... she left my daughter in the house alone and left to the pizza shop. The only other person in the house was my daughters grandfather who is very disabled. He can’t walk, barely can talk, is blind, can’t hear well, can’t feed himself, he’s in a wheelchair but can barely even guide himself on that. And when we walked into the house my little one was screaming crying and about 5 minutes later, my mother in law came in the house. I’m beyond angry.

Edit: I figured I’d get hate over her staying over night which is why i made this anonymous 🤦🏼‍♀️ i thought she was trustworthy, she’s great with the baby and i did not expect this. I didn’t mind until now.