Tig Murphy's phobia is definitely the fear of being abducted by aliens. As a kid, his teacher allowed the class to watch Signs (the M Night Shyamalan movie about aliens). The class was much too young to be watching this movie but the teacher didn't seem to particularly give a shit. Murphy was subsequently traumatized at the thought of creepy aliens and developed a sense of dread anytime he was in the dark alone. This fear has not really subsided into his adult life, and to this day he struggles with watching anything related to aliens unless it's in broad daylight. This phobia has even extended itself to the horror genre at large, as he cannot sit through almost any horror movies as jumpscares cause him to shit his pants. Of Murphy's many strange neuroses, his need to sleep without so much as a finger or toe outside a blanket is particularly noteworthy as something that can be traced back to his grade 3 trauma.