LONDON -- Unless you are the sort of person who wants to stand on the streets of Pamplona and feel the snort of a raging bull on your face as it passes within an inch of your precious flesh and bone, opportunities for real-life thrills in the modern world are increasingly hard to come by.The dulling effects of relentless scrolling mean we now experience these primal charges through, for example, 10-second clips of a mechanical crusher squashing various household items into smithereens. They're good, but they're not real.A fascination...