david suchet: you've caught me in my trailer. to me, it's more like a caravan near an airport. i should explain because i'm half in and half out of character, and you've caught me during my lunch hour here. i've just taken my mustache off, and with it on of course, i would be... [belgian accent] hercule poirot. i know this man, agatha christie's famous creation. i know him so well i could take him shopping, but how well do i, david suchet, know poirot's creator?