Why does Hamlet not kill Claudius when he has the perfect time and opportunity?
We've reached act 3, scene 3 and Claudius is down on his knees in prayer. He opens his heart to God and expresses his sense of guilt at having murdered his brother, Hamlet's father. All murder is bad, but there's something particularly depraved about killing your own brother:
Oh, my offence is rank. It smells to heaven.It hath the primal eldest curse upon ’t,A brother’s murder.