KinderCare Education review: service at kindercare

Recently I went to a kinder care to entropy my 15 month old son. While I filled out th forms my son and MIL waited in my son's classroom. When I returned to the room to pick them up I noticed my son was chewing crayon ball. He had crayon inside his mouth. I asked the teacher if I can get some water, need to clean up my son's mouth full of crayon. The teacher said no, you'll have to ask at front desk and then she says don't worry al our materials are non toxic...I was furious! Then I saw my son about to eat paint but MIL immediately took him away. I felt they don't give protection to kids. Hence, I decided to not enroll my son there. I will file a complaint to their main office.