Mentioned in "Doppelganger"
Jocelyn Rutger was a student Rodney McKay knew from third period science. McKay described her as a bit of a geek. When McKay was sixteen years old, he asked her out to on a date to see "Alien", which was held by a neighborhood horror revival festival. However, while watching an uncomfortable scene where John Hurt's character was killed when an alien burst out of his stomach, McKay puked all over her. It is unknown what happened to her since. (SGA: "Doppelganger")