Local swimming centre with the slow/medium/fast lanes out for people to do lengths. Also on the sign for each lane type, is the direction of clockwise/counterclockwise and a reminder to stay in the lane/keep the direction etc.
There are two people in one of the lanes, but they are swimming in the opposite direction to the one indicted on the sign.
A new swimmer enters the lane and starts swimming, but in the direction indicated on the sign.
Who is being unreasonable here?