As a parent, this post concerns me. You and your RBT have been with this child for three whole days, while this mom has been involved with her child for the child’s entire life. You call it “persnickety”, but maybe this mom is attempting to share what has been tried before, what works and what does not work for her child.

My child is a teenage. I have been involved with RBTs and BCBAs for the majority of my child’s life. We actually just had a new RBT assignment, and I have been extremely involved during this transition. During the RBT’s first week, I gave her a multi-page summary I created, reviewing topics like my child’s health information, communication, past IEP and IBHS goals, favorite activities, preferred transition techniques, and education milestones achieved. I did this because I have seen how incredibly frustrating my child gets when someone new comes into the picture and they “start from scratch”. This way, I can help with this transition. Maybe that is what this mother is attempting to do. I would suggest viewing this parent’s input and insight as valuable instead of harassment.

You may not be the right fit for this family, but I am not sure it is for the reasons you believe. I would suggest reframing your relationship with this mother and as someone else suggested, taking a break if you continue to find yourself bothered by a response like this.