The other time was during break. There was a grassy bank by the side of the playground that we were not allowed to go on. A boy and I were rolling down the bank and were seen by a teacher who came storming over to us. We both got our legs slapped for that.
This is off topic but I think you might appreciate it. I was quite good at “sums” (sorry, but that what we called arithmetic then. I wasn’t too bad at differences, products and quotients either. ) and I remember something about being put in a higher class.