Those police in Las Vegas are such kidsters. Periodically they do tests to see if motorists are yielding to pedestrians at crosswalks by dressing up in different costumes . For instance on Thanksgiving they had police officers dressed as turkeys and at Christmas they had Santas trolling the crosswalks. So I guess its only fitting that on St Patrick’s Day they have leprechauns. Failure to yield to a leprechaun will set you back $190.