"As violently as hasty powder fired
Doth hurry from the fatal cannon's womb."
When he thinks that Juliet mentions his name in anger, it is
"as if that name,
Shot from the deadly level of a gun,
Did murder her."
When Lawrence remonstrates with him on his violence, he compares the use to which he puts his wit to
"Powder in a skilless soldier's flask;"
and tells him that
"Violent delights have violent ends,