In a conversation last night with DD (18) and H, about an issue DD had at college this week with a tutor. H referenced tutor's nationality as a probable factor in the way they dealt with the issue (poorly). I pulled him up in this saying it was a sweeping generalisation and had no relevance to the situation.
Minor argument (not heated) followed, in front of DD, which obv distracted momentarily from actual issue under discussion and later I was accused of BU and wrong by H, and that I should not have said it in front of DD, that if I had a problem with his point I should have spoken to him alone later. I disagreed saying I didn't want this kind of generalisation to be seen by DD as normal or acceptable.
Who was BU?