Yale University neurophysiologist José Delgado waited until the bull was just several feet in front of him, then hit the switch. The bull came to a screeching halt. Watch the story of Jose Delgado and the bull Add to ... The Globe and Mail Published Friday, Feb. 08 2013, 3:07 PM EST Last updated Friday, Feb. 08 2013, 3:09 PM EST 0 comments Print AA