Quote from Barney in Trilogy Time
[flashback to 2009:] Barney: Anyway, while it's just us guys, We've all had that same fantasy about having sex with a girl in a stormtrooper costume, right? Ted: Mmm, no. Marshall: Never. Barney: Guys, come on, no girls around, just us bros. Safe space. Let's stop being polite and start gettin' real. Stormtrooper fantasy. Every guy's had that one, right? Ted: Not even once, no. Marshall: No, no, no. Barney: So I'm the weird one? Both: Yeah. [The Stormtrooper nods]