In September, 2011, Mexican street vendor Karla Flores checked into the emergency room in her home state of Sinaloa with a grenade lodged in her face. She appeared to have been caught in the crossfire when someone shot off a rocket-propelled grenade. Doctors and bomb experts weren't sure, but the bomb most likely didn't go off because the pin was being held shut by her jaw. Using only local anesthesia, the unprotected medical team wheeled Flores to an empty field and gave her a tracheotomy so she could breath. They and a bomb-disposal team removed the grenade without it going off.