Video: Table stacker strikes again

SPOKANE, Wash. (CNN/KREM) - A prankster, or pranksters in Washington state have a little too much time on their hands.

Someone stacked a park's picnic tables into the shape of a pyramid in Spokane. They also put construction lights at the very top.

This is the fourth time in recent weeks officials have had to deal with the so-called "table stacker."

They say they don't know if the stacker is an average vandal or trying to express art.

Parks officials say it takes a lot of resources to undo these tables, including using a forklift and a bucket truck. They also say this stacking is dangerous because the tables could topple over and hurt someone