Two West Virginia guys were working for the city works department. One would dig a hole and
the other would follow behind him and fill the hole in. They worked up one side
of the street, then down the other, then moved on to the next street, working furiously all
day without rest, one guy digging a hole, the other guy filling it in again.
An onlooker was amazed at their hard work, but couldn't understand what they were doing.
So he asked the hole digger, "I'm impressed by the effort you two are putting into your work,
but I don't get it -- why do you dig a hole, only to have your partner follow behind and
fill it up again?"
The hole digger wiped his brow and sighed, "Well, I suppose it probably looks odd because
we're normally a three-man team. But today the guy who plants the trees called in sick.