In my mind this is a far superior song to those already listed in this node. It first appeared on the 1976 'Derek and Clive (Live)' album, Derek and Clive being the filthier than usual alter-egos of Peter Cook and Dudley Moore, and is sung in the style of a hymn

Derek: (plays piano and sings:)
As I was walking down the street one day
I saw a house on fire
There was man, shouting and screaming at an upper-storey window
To the crowd that was gathered there below
For he was so afraid

Jump! You fucker, jump!
Jump into this here blanket what we are holding
And you will be all right
He jumped, hit the deck, broke his fucking neck -
There was no blanket

Laugh?! We nearly shat!
We had not laughed so much since Grandma died
Or Auntie Mabel caught her left tit in the mangle
We are miserable sinners
Fi-i-ilthy fuckers

Ahhhrrrr-soles