“Look out, everybody, things are about to get awesome!”
Herbert is an NPC in the Borderlands 2 DLC, Captain Scarlett and Her Pirate's Booty. He used to work for Captain Scarlett before she fired him, and subsequently has a piece of the compass leading to Captain Blade's treasure. He is obsessed with Scarlett, and has a shrine to her in his home in The Rustyards. After you obtain the last compass piece from him, you can fulfill an optional mission objective by delivering Scarlett's "present" to him, which turns out to be a bomb, blowing him up.