* Mistaken Identity: Hamlet is in a state of madness and anger after his father's death. He believes Polonius is spying on him.
* Hidden Behind a Tapestry: Polonius is hiding behind a tapestry, eavesdropping on Hamlet. Hamlet, in a fit of rage, stabs through the tapestry, unknowingly killing Polonius.
It's important to remember that Hamlet does not intentionally kill Polonius. He is driven by his grief, anger, and paranoia, and acts on impulse. This event has significant consequences for the play, further fueling Hamlet's internal conflicts and setting the stage for more tragedy.