Men at Work
Two guys work for the city: one furiously digs a hole, the other quickly fills the hole.<BR><BR>A confused passerby asks, "Why do you dig a hole and fill it up again?"<BR><BR>The digger leans on his shovel and replies, "The lazy jackass who plants the trees is sick again today."
http://www.jokes.com/funny/labor/men-at-work