AIBU- So I work in a nursery and I had popped inside (all the children were outside eating snack) when I came back out something told me I needed to look in child X's cup to see what was in it. (Child X has a dairy allergy) I look into the cup to see milk, I take the cup away and ask "Why has X got milk, they have a dairy allergy?" When I said this I was unsure who had given it to them (This is relevant). Another staff member who has been in the class for months said she had forgotten X had a dairy allergy and thought it was just Y.I then go inside to double check the X's allergy action plan. When I come back out I just reiterate what is said on the plan and go sit by X to monitor them. A few minutes later go back in to fill a child's water bottle, and one of the managers pass so I let her know incase there is any backlash from the parent (rightly so). The member of staff who gave the milk is taking it super personally and won't talk to me and has also seemingly turned the other staff in my room on me who were previously friendly with me. This member of staff has also received no sanction, and other staff in the are saying because shes new its ok (baring in mind we have other children with anaphylaxis alergies in the class) So am I being unreasonable to think she is totally over reacting as she was the one at fault for giving X the milk in the first place.
Across the room recently I have had to take food off several children given by other members of staff because they have given a child a food they are allergic to or are not allowed.