I used to love making paper planes during my classes. On one such occasion, when I was in my seventh standard, in spite of good aim the paper plane just zoomed off and lodged itself in my class teacher’s hair.
She was unaware of it and the whole class burst out laughing at the odd sight. Soon the teacher realized the addition to her hairstyle and being a nice teacher joined in the laughter. I had a tough time explaining what went wrong with my plane. Since then I have stopped making paper planes in class.