At the session at Audlem, Duggie (whose songs are usually prefaced by "put your glasses on Duggie" or "has it got a chorus?") sings a song about a sergeant who was strict about cracking down on late night drinking
The chorus includes the lines

Drink up your jars
No after hours
That's what we hear the sargeant say.....

I can't remember any more except that the chorus changes in the last verse as the sargeant joins the drinking session.