Blonds

Two blonde girls were working for the city
public works department. One would dig
a hole and the other would follow behind her
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 girl digging a hole,
the other girl 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 her brow and sighed,
"Well, I suppose it probably looks odd because
we're normally a three-person team. But today
the girl who plants the trees called in sick."