It is impossible to reason with our child if they are dysregulated (screaming, crying, etc..) 

Co-regulate with your child first by sharing your calm in their storm, then when everyone's in the green zone, it is never too late to talk about what had happened. 

Consider that most of your child's behavior is not to upset you, and instead, it is a stress response to environmental change. With that new perspective, how can you better help your child problem-solve and reach a compromised solution?

Big little feelings are great for parents of young children