Wikipedia:Headless Chickens

If a chicken's head is severed, it will sometimes run around headless – a dreadful sight to see. Don't do it; don't run around in a foolish frenzy because someone does something stupid or controversial, acts without consensus, posts a controversial comment on a talk page that you are monitoring [or your own talk page], or because you get a warning or a block. Cool-headedness and a calm, collected manner gets you further than behaving like a headless chicken.

Admins acting like headless chickens are more dangerous as the results of any panic-stricken actions they make are often more complicated or more difficult to undo [e.g. deleting a page or blocking a user]. Luckily most admins have either the experience or common sense to avoid behaving like a headless chicken.