Many things scattered throughout the Milky Way flicker, glow, and pulse in idiosyncratic ways. From the staccato static of a pulsar to the sudden eruption and slow fade of light from a nova, astronomers have a good handle on the various transient changes cosmic objects undergo. It would be a mistake, however, to think the catalog of sidereal shenanigans is complete. And astronomers have now observed an object behaving in ways that no one has ever seen before.