...Comes from the D&D game I'm *not* runing. My character (A wizard/cleric crossclass) had set alarm spells in case he was attacked in the middle of the night. (His party members didn't really care for him at this point.) When his alarm spells triggered, he discovered that nobody had entered his room. Rather, someone was trying to intrude into the building entrance. (He accidentally set the field of view of his "Eyes of Alarm" spell a bit to broad, I guess.)
Not wanting to spend the five minutes to don his leather armor, I simply said "OK, I put on my robe and wizard hat, and head out into the hall."
At this point, one of the other players started laughing uncontrollably. He and I were apparently the only two who were familiar with the Legend of Bloodninja.