Why don't you do us all a favor and pull your head outa your arse before those last three brain cells die!
I heard this one slightly differently in Basic Training, 1961.(Picture a T.I. face to face 3" away from a recruit and yelling the following full volume at the hapless recruit who just fumbled a task}.
You better straighten up and pull your head out of your ass before you fart and blow your brains out!
ROTFLMAO, but DEFINITELY NOT at the same time as the occurrence of the incident.