Ok, here’s your answer... It was a BBC radio ‘session’ .... .Bill says “Sputum cups at the ready” as a spoken introduction ‘instruction ‘😀.... This is because (and I’m mind reading here 😉) the opening notes (synth...sequencer ?) prominent on this track on the session sound a bit like a ‘sputum cup’ being used albeit rhythmically 😂..... On the Red Noise album Sound on Sound the track ‘Out of Touch’ starts with the drums etc...