I thought this a strange one as well, but when I questioned it was told that we have had them before but they have not been as obvious as the guy yesterday merely sat on the sideline and threw the balls in etc and did not go out with the line up
Saying we have had a forth official before could that have been when young Barry used to hold up the board indicating how many minutes of extra time were to be played?
Slightly off topic but a fourth official was present on Saturday. However, he was only present as a standby. The scheduled referee was caught in traffic and it looked likely he would not arrive in time. A local referee was called up but the scheduled official made it on time so the standby was used as a fourth official