If what you intend to say is about or to a marginalized person, it is worth asking yourself a few quick questions in advance. Think about the taxonomy and whether you may be walking into one of those inadvertent exclusions:
The best way for each of us to learn to do better is to have greater insight into the effects which our behaviour has on the people around us. How can we improve if no one is brave enough to let us know that we have areas for improvement?