Two female council workers where hard at it one digging a hole and the second filling it in. They work up one side of the road and down the other one digging one filling in .

Local resident was so impressed by their unrelenting efforts  without a break he approached the two women to praise their work ethic and to inquire as to the reason for the digging and filling of the holes .

Ladies,  I'm so impressed by your work ethic I will write to Council today pointing out how dedicated you both are and the effort you have put in under such adverse hot conditions .

But !  I have one question  Why are you digging the hole and your work partner comes along behind and fills it in .

Well Sir, wiping the sweat from her brow , we normally work in a team of three but the girl who  places  the trees in the hole  called in sick today.