One of my favorite subjects as a pupil was Math. Ever since I was a child I loved a good problem to solve and writing them on the chalkboard was something I really enjoyed. From time to time something very funny happened: I would see in my head the entire demonstration before going to the chalkboard, only to stumble halfway while I was writing it. Each time it occurred my teacher would come to me, gently grab my shoulders and slowly drag me backwards away from the chalkboard. Needless to say, every time he did that, I found a way to finish the demonstration and solve the problem.

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