Colombians parade on beds on the "World Day of Laziness", the closing day of a festival held every year since 1985 in the municipality of Itagüí, south of Medellín. "Laziness is the engine of progress, when you are too lazy to cook, you go to a restaurant, when you are too lazy to wash, you buy a washing machine, when you are too lazy to organise the house, you hire someone," says Carlos Montoya, the creator of the event. IMAGES AND SOUNDBITES