My nephew and a friend were trespassing in the grounds of a block of flats near where they live. A resident opened her window and told them it was private property and they couldn't hang around there. Apparently she had very sparse hair and they immediately started jeering at her, calling her baldy, saying she needed to brush her hair etc. A friend of my sister saw the incident and said it was obvious the women had some kind of medical condition or was undergoing chemotherapy. My nephew is fifteen and really should have known better.
My sister was defending her son, saying the friend had implied he was being unkind etc and it was unfair. I said I thought his behaviour was a disgrace and she should be ashamed.
She's now not talking to me. AIBU to think she should be having words with her son. God knows what distress he's caused that poor woman with his rude thoughtless comments.