Overview: How to make perfect toast - the lazy man’s way. NASA eat your heart out, we join the space race with shopping trollies. We ask which food produces the smelliest fart. Can Brainiac Boffin Jon Tickle walk on custard. Brainiacs play golf to test the laws of probability. If you’ve got something important the next day, is it better to be tired or wired. Jon Tickle launches his office rocket. We find out if pheromone spray works on our lovely Julie. Three firemen tackle our safe. And Fat v Thin continues.