Colorblind, bulls respond to movement rather than color. Even movement in the periphery of the arena can set off a bull, leaving the hapless bullfighter at the mercy of what looks like a charging freight train. Dunn considers bullfighting to be not only an exciting challenge, but more than just pure entertainment. American bullfighting can be the most dangerous kind of bullfighting in the world, even though the fighter never kills the bull. Allowing an experienced bull to live after a contest may be one of the most lethal practices in sports.
Experienced bulls can refight in subsequent contests.
And cowboys say bulls learn the game of bullfighting fast, making experienced bulls murderous in the first degree. Wearing a summer straw cowboy hat, Dunn looks like the Marlboro Man without a heavy jacket. Yet he walks with the slightly pigeon-toed, easy gait of the natural athlete. The competition cuts too hard with big money at stake for competitors not to keep in shape. And it takes real muscle and stamina to fight a bull for 70 seconds.