Julius Lukeš is a medical doctor, scientist, traveller and Charles University graduate who has visited more than 100 countries worldwide. He wrote a book about his adventures and misadventures - called Exotoulky - where he describes situations many of us could scarcely imagine. Among them: a near-fatal encounter with a jellyfish off the coast of Malaysia. The good-humoured author reveals what it's like to travel low cash in the some of the strangest situations ever. Included: the story of how only a researcher would get rid of bed bugs caught in a posh hotel.