A very good friend was a career RCMP officer. One day in Charlottetown PEI, while on his way home in his own car in civvies, he stopped to let an old gent shuffle across a cross walk. The fellow in the car behind was leaning on the horn and yelling for the old guy to move it.
Joe, my friend, got out of his car and started to go back to tell the guy to calm down, the old fellow in the cross walk had the right of way. As he approached the car, the fellow started to yell at Joe to get back in his car or he'd "call the fuchin' cops."
Joe's response was , "I am the fuchin' cops!"

By the time the old fellow got across the street the loud guy had turned around and was heading back the way he had come.
There be fools everywhere.
Best
Les