Sir Paul Nurse, left, misses a high-five hand clap with Julie Maxton after receiving the Communication and Humanites Prince of Asturias prize in Oviedo, Spain, today. The award is one of eight of Spain's prestigious Asturias prizes, presented by Crown Prince Felipe and granted each year in various categories. (AP Photo/Paco Paredes)

Question: When & why did you last high five someone?