Victor Hugo wrote Newt's campaign plan:

[Jackpine Radical]

"The carronade, hurled forward by the pitching, dashed into this knot of men, and crushed four at the first blow; then, flung back and shot out anew by the rolling, it cut in two a fifth poor fellow... The enormous cannon was left alone. She was given up to herself. She was her own mistress, and mistress of the vessel. She could do what she willed with both."
http://www.phrases.org.uk/meanings/loose-cannon.html