I thought of an interesting Halloween costume idea for myself and my coworkers given that I am scheduled all day on Halloween. It's called, "The Four Horse(wo)men of the (Simulated) Apocalypse."
Conquest: Myself
War: My Partner in Crime (a.k.a. coworker with same job description)
Famine and or Pestilence: Faculty
Death: Faculty (sauciest)
It would be fun, for s's and g's; but I'm sure someone would throw a tantrum and object to such lab insanity.