Big Job Doom Thing, Page 138.

It's said that in every band, there's at least one member who is 'the plumber', the one who looks like he's moonlighting and may be called away from behind his drum-kit at the Wembley Arena at any minute to unblock a sink or bleed a noisy radiator. There are also a few bands who consist almost entirely of plumbers, but whatever you say about Carter, you couldn't accuse us of that.