In Rockland, Maine, seven police officers and one first responder walked into a Tim Hortons doughnut shop — and kicked powdered sugar in the face of one of the country’s most enduring stereotypes. Once again, none of the officers won the second annual Law Enforcement Donut Eating Contest, a title that was carried away on the massive shoulders of Justin Hills of Camden First Aid. Whoever ate six doughnuts the fastest would win the contest, which was designed to raise money and awareness for Special Olympics of Maine. A donations jar at Tim Hortons raised more than $130 at the scene, and the snazzy red T-shirts that advertised the event were selling briskly for the bargain price of $10. The restaurant echoed with laughter, applause and cheers during the three competitions — among law enforcement, among six Special Olympians and then among three owners or managers of Tim Hortons restaurants in Maine.