David Karsnia is a sergeant with the Minnesota police. He is not well regarded by his superiors or most of his peers on the force. In fact, they were so disappointed with him that they wanted to get rid of him. It was decided that the best way was to figure out the worst possible assignment to give him in order to manipulate him into quitting.
After all, no one would ever admit to being sent to do gay bathroom duty at the airport. And there is no way he would get anywhere on the force with gay bathroom duty at the airport on his resume! I mean, c'mon, Minnesota is filled with Republicans! Anyone who thinks a Republican would do anything gay in a bathroom is obviously nuts!