Blonde blokes

There were two blonde fellows working for the city council, one would dig a hole, the other would follow behind him and fill the hole in. They worked 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 appreciate the effort you are putting into your work, but what's the story? You dig a hole and your partner follows behind and fills it up again."

The hole-digger wiped his brow and sighed, "Well normally we are a three-man team, but the bloke who plants the trees is sick today......"