The story is not mine, it happened to my colleague (a very nice and understanding woman), let’s call her E.T.

Once a company of walkers came to her for consultation, they needed to do labs (physics). A colleague gave them a task, equipment, went between the tables, explained exactly what to do and went to the room.

A minute after ten came out, looks, all students are busy (who gathers the chain, who torments the pendulum, who turns the prisma - depending on the missed lab). Except for one. He rides on a chair with a sad look and breathes hard. E.T. approached him and asked, “Why don’t you do anything? He replied, “I need to count, but I don’t have a calculator.” E. T. offers him to count in a column, passes checking the work of the others and returns to the back.

Ten minutes later, she goes out again and sees that nothing has changed. He goes back to the student and again asks, “Why don’t you do anything? “” She receives a response from which she shakes for a few more weeks (laughing): "- E. T., and how to count? You did not give me a pile!”

P.S. He did not learn from us, was deducted for failure. He will live in my hearts forever XD