What Links ER toilet, Raging Bull, Blue's Brothers, Kingsley Amis?

Question:

How does an Elizabethan toilet link: 'Raging Bull', John Belushi in
'The Blues Brothers' and a Kingsley Amis novel?

Best Answer - Chosen by Asker:

Water??

Water closet
Ice water down the pants
Something in the water
The Water Babies