Anonymous wrote:I would request it but given the situation you described, don't be surprised if they don't honor the request.
If there isn't a historical issue between the kids they might just need to slot kids in where they can.
I would 100% reference issues with the child that happened elsewhere, true or not. Plus OP said the boy calls her son fat.
FWIW, I put "negative requests" (never heard them called that) down every year of ES for both my kids and they were always honored. I always limited it to no more than 2 kids per year. Many years it was the same kid as the previous year. 7 hours a day x 180 days is a long time to be trapped in a room with someone mean to you.