My first encounter with Brian Posehn was on Just Shoot Me!, where the bespectacled comic actor played a lumbering and slow mail clerk named Kevin. Man, was that the perfect role for him. Since then, though, he’s appeared regularly on The Sarah Silverman Program, Reno 911! and Kim Possible. And last night, he appeared on Conan to promote a live show in Seattle and his newest album Fart and Weiner Jokes, and to chat a little bit about his new life as a father. That apparently involves giving up weed and trying to lose weight. Everyone’s gotta grow up sometime, am I right? Have a look here, kids…