In the main tent at the 1972 Laycock folk festival he was singing Chastity Belt and asked for a drink. Someone passed one up to him and he said "Ah, the man from Oxthirst!"
Then he did the "Just a drop to steady myself" gag.
In the same song, at the point where they go to the locksmith,
"On his door we will knock." he knocked on the guitar and said,
"Knock, knock"
Audience - "Who's there?"
Diz - "Catch"
Audience - "Catch who?"
Diz - "Bless you!"
Bless you Diz.
Robyn