A man is watching two council workers busy in a local park.
One digs a hole, moves a couple of meters and digs another hole, and so on. The other worker follows the first, immediately filling in all the holes the first worker has dug.
The man watching is furious, and approaches them saying, "I'm going to write to the council about this digging holes and filling them in right away, it's a disgrace."
"Hang on," says one of the workers, "It's not our fault that Charlie's off sick."
"Who's Charl…