As they are intended for humour, they should be considered non-canon. Most of these encounters consist of humorous pop culture references or other games or even earlier Fallout games ( The Café of Broken Dreams). They usually serve as entertaining points of humor, though some are very dangerous ( mad brahmins), while some grant access to unique, sometimes powerful loot ( Bridge Keeper). Special encounters are special random encounters often unique compared to more common encounters which may consist of hostile non-player characters.
