++CLIENTS PLEASE NOTE: THIS VIDEO HAS BEEN BLEEPED AND LOOPED+<br /><br />A construction worker in the UK thought of a novel way of waking up his mate who had fallen asleep on the job.<br /><br />Footage shows the builder dozing on the floor of the construction site next to a row of about a dozen concrete slabs standing on their ends. <br /><br />The filmer, not impressed by his friend's work ethic, tips on the slabs, causing a domino-like effect. <br /><br />The final slab comes crashing down on the sleeping worker's head.<br /><br />The filmer writes: "We were waiting to go to work on a housing site and my mate decided to take a nap. <br /><br />"We made sure it would be memorable.<br /><br />"He wasn't hurt – just surprised."<br /><br />The clip was filmed on April 20.
