Sudden random flash of memory and spotting a pun I’d never clocked before.

Yellow Submarine, just after the four board, and Ringo says: ‘I wonder what happens if I pull this lever?’

Young Fred: ‘Oh no, you mustn’t touch that!’

Ringo: ‘I can’t help it. I’m a born lever-puller.’

*groan*

(Haven’t seen the film in decades. Don’t ask me why I just realised now.)