The other day I stopped to observe two men working in the public works department. One was digging a hole and the other was following behind him and filling the hole. After a while, I had to ask:
- Why dig a hole, only for your partner to come and fill it up again?
The hole digger wiped his forehead and sighed.
- Well, I suppose it probably seems strange, because we're normally a team of three. But today the boy who plants the trees took the day off because he is sick.