She fed my baby someone else's bottle

**UPDATE** Many have said I was overreacting, this was my personal opinion. I don't want my baby to be using someone else's bottle & nipple that has used on the daily. I have seen how that bottle was washed- rinsed and soaked in warm water before using and I do not approve. My baby has her own bottles. I am also worried about my baby's health so I am picky.************ I am completely grossed out. I definitely am not okay with that. My mil just fed my baby with my breast milk in another child's bottle and nipple. I am not okay with sharing bottle nipples even if it's been washed with water and soap. It's that child's bottle and nipple not mine. i don't know if you're okay with it but I'm picky and did not consent to that. She did it without asking any questions. 😑😑😑