A city EMT was busted early Monday for threatening to attack his bed-stealing co-worker with a “rusty spoon,” police said.

“I will stab you with a rusty spoon if you sleep in my bed,” Richard Cuccurullo, 25, allegedly wrote in a Facebook post.

The threat was made against another FDNY EMT who works in the same Brooklyn EMS station, police sources said.

Cuccurullo was arrested at his Bensonhurst home just before 1 a.m. and charged with aggravated harassment, police said.

He has worked as an EMT since 2015, according to SeeThroughNY.