The reasons for becoming a berther may include maintaining one's sanity, protecting one's self and others, including the lunatic fringe, and preserving one's faith in mankind.
Person 2: "Man, you really should become a berther...that shit'll kill ya."
Nearby Scientologist: "Dude, you said it. What a bunch of crazies." *Sips the kool-aid*
Person 2: *coldcocks him*