A little boy comes home with his mother from a trip down town. Above his head he has a big bunch of balloons.
- Why do you need so many? - Asks his father. - Did not your mother and I teach you that you should save your money?
- I did not spend any! Its just that every time Mummy bought something the salesperson gave me a free balloon.
Every night, wasps bite into the stem of a plant, lock their mandibles (jaws) into position, stretch out at right angles to the stem, and, with legs dangling, fall asleep.