Someone clever but useless= like a bowler hat with sleeves.
SWO doing his rounds sees a slovenly airman some distance off.
'AIRMAN' shouts the SWO.
'SWO' shouts the airman and runs like buggery.
At a well known F4 base in the mid 70's I had the habit of ansering the line phone with 'Dogdyke pig farm, head pig speaking'.
Of course one day I had the two second silence and then 'This is OC Admin speaking, who is this?' To which I had the presence of mind to say 'I've just f....... told you, the head pig.' and quietly put the phone down followed by a rapid exit.
Investigations revealed nothing. We were a tight knit bunch.