tu may not have noticed, but the bottoms of In-N-Out Cups and Burger Wrappers cite biblical verses. This is an articulo from Snopes.com that details the origins of this practice.
Kids, don't try this at home. Frightening pictures of a group of 8 friends who decide, on a whim, to order a 100-patty burger from In-N-Out. Oh the humanity!!!
An articulo from Quick Service Restaurant reportar that examines In-N-Out's success. Also has a más complete lista of the "secret menu" than In-N-Out's official site.