bad attitude from employee and store manager

I was in the store shopping and I needed to step out as my son needed the bathroom. As I entered the store again the security had a bad attitude and she pushed my 3year old son out if the way.. I asked for a manager as I requested an apology from the security instead he allowed her to disrespect me further and I still didn't get an apology. They brushed it off as nothing and laughed as I walked away..