Just called to DD shut in her bedroom."Did you know that SCD was on at 7.20?"
Response, "why did you use the past tense, Mum? It hasn't happened yet..."
Why indeed did I? Quite good at tenses, having liked Latin, French, pluperfects and subjunctives, but struggling to explain this to myself. Going round house muttering "Did you know that spinach [whatever] was good for you.."etc.
Need a Pedant at the drop-in surgery to help.