When I played soccer in my university days (go ahead, be impressed), the referees would often penalize guilty players with a yellow card (as far as I can remember, I never received a yellow card; but as parents, both Jo and I were once warned and then kicked out of a hockey game in which our son was playing!). Here’s the point: Some of you have waved a metaphorical yellow card in my face recently. You have said it was unfair, unjust and unfathomable that I would ask three difficult, but engaging questions, but never give any hint of answers. To you I say, it was a perfectly legitimate teaching technique, so just keep that yellow card in your pocket!  But I am willing to concede that maybe it would be good to discuss these questions further. So, let’s talk about it.  The three questions I am talking about were