https://www.theregister.co.uk/2018/11/06/bill_gates_poo/

Bill Gates' obsession with all things faecal continued apace on Tuesday as the billionaire philanthropist took to a Beijing stage armed only with a fierce determination to improve global sanitation. And a jar of poo.

The stunt may remind some of the 1993 episode of the BBC current affairs quiz show, Have I Got News For You, where a last-minute cancellation by then Member of the UK Parliament Roy Hattersley led to the unfortunate Honourable gentleman being replaced by a tub of lard.