The Queen says:
"To draw apart the body he hath killed,
O'er whom he very madness, like some ore
Among a mineral of metals base,
Shows itself pure: he weeps for what is done."
For any who has read Hamlet we know that he just accidently killed Polonius...He didn't really seem to care at the time so I'd assume he didn't cry about it but...did he? The Queen was there...and is the Queen just trying the King go easier on Hamlet? Is even "he weeps for what is done" meant to refer to Hamlet?