poo

"I've collected car bumpers, bottles, cans, dog poo and things you don't even want to know about."

These included reducing lower tummy pain, bloating, straining - and making it easier to poo.

"Discussing wee and poo is very un-British. It's not something that we as a culture do."

But it is this strong smell, as well as the smell associated with their insect poo - frass - that makes them ideal to be found by sniffer dogs.

A Welsh football club is cracking down on dog fouling after one of its eight-year-old players was left "covered" in dog poo at a recent practice.