Learn the Hangdog Fighting Style

Learn the Hangdog Fighting Style was going to be a quest in Van Buren, the canceled Fallout 3 by Black Isle Studios.

Background
If you befriend them and become a Hangdog warrior, you can spend some time training with the Hangdogs and learn their unarmed style, "The Way of the Dog," which might involve a lot of tripping/knockdown.

Source

 * Blackfoot design document