A white collar is watching two blue collars. While looking out of his window, Jack the IT guy sees two construction workers in the park. Both of them have shovels. Jack watches the first dig a hole about eight feet deep, three feet wide. After he's all done, the other worker proceeds to take all the soil the first worker dug up and replant it right afterwards. All in all, it takes about twenty minutes for the workers to finish their job. Afterwards, they move a few yards down... And do the exact same thing. Soil up, soil down. Shovels hit the ground, the workers wipe sweat off their brows, and they move from location to location, leaving mounds of dirt among the freshly manicured lawn. Finally, Jack hits his lunch break and goes down to the park with his sandwich. He strikes up a conversation with the two workers, who coincidentally are also on their lunch break. ""So, uh,"" Jack starts, ""I noticed you two were digging and filling up holes. Is their a problem with the park?"" The first worker says, ""Oh, no problem, bub. We're just planting. Usually, I dig the hole, Bob plants the tree, and Al fills the hole. Problem is, Bob's sick today.""