They'd jumped him at midnight, sneaking up on him like the cowards that they were.
He was screaming inside the whole time that black-eyed bastard was telling Sam that he wanted him to lose his number.
But when that bitch put the knife in his hands, and told him to slice the life out of Dean, well that was enough to make Bobby Singer's blood boil.
Not my boy! Not him!
Fear like he'd never seen in Dean's eyes had been the catalyst, the push he needed, and Bobby forced his arm down, driving the knife into his own stomach.