Burmese Bandit

In a moment of deep introspection, Bruce Wayne talks to Alfred that the mob "crossed the line" when hired a completly insane and unpredictable criminal like The Joker.

Alfred then surprises Bruce tolding one of his mercenary missions from the past.

When young Alfred searched for a similar individual that stolen tangerine-sized rubies on Burma. Wich Alfred refferes to him like that: "Some men aren't looking for anything logical. They can't be bought, bulied, reasoned or negociociated with. Some men just wanna watch the world burn."