15 Dark Fan Theories About 'How I Met Your Mother'

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Vote up the theories that actually make a lot of sense.

Up until the series finale, dark theories about How I Met Your Mother were scoffed at for being outlandish and bizarre. However, since the show itself killed off the mother the story had been hyping up for about a decade, fan theories have started to make a whole lot more sense. While many of these truly are out there in terms of believability, they do make sense given the context provided by the fans. All of these can be considered dark interpretations of the series, ranging from the topics of death, depression, and behaviors of the main characters.