Usually you don’t want to try to tip a police officer. Crime tips, yes, but not money. That could get you in trouble.But on Friday a lot of local cops will gladly take tips.The Bangor Police Department and Texas Roadhouse will host Tip-a-Cop from 4 to 8 pm. All tips collected go to the Special Olympics of Maine. Officers will assist restaurant staff waiting on tables, and they’ll be there to greet you at the door too.Sgt. Paul Edwards of the Bangor Police Department: “The Bangor Police Department has always supported the Special Olympics here in Maine, we feel it’s our duty and our commitment to the Special Olympics, and what better way to raise money for that?” The Special Olympics promotes year-round sports and athletic training and athletic competition for children and adults with intellectual disabilities.