A picture in the medical text book at a party in Leeds, that obvs stayed in my memory for a while! 

I had a little gall bladder

I watered it with care

and gradually

it came to be

that it grew a little hair

My lovely little gall bladder

it went to school by by bus

but when it stopped

it began to rot

and filled with light brown pus

oh! such a pretty gall bladder

they came from all around

to photograph

the way it laughed

and I was really proud

Oh pray where is my gall bladder?

it twinkled like a pie

and fleshily swabbed 

the ample breeze 

when I hung it out to dry

there was a fateful day, alas

when it finally went to heaven

and now 

its only tribute

is on page 187