Violent English: To Kill a…Clock?

The Book Ninjas are hard at work on the upcoming Mayhem Meter, a companion to the Blush-O-Meter! The Mayhem Meter will classify books based on their violent or bloody content.  There is much less blushing involved!

As the ninjas pore over piles of books, something has become apparent:  The English language is very violent, even in normal, everyday use–sort of like ninjas!  We like to kill all sorts of things, even when they’re not alive:

We wear things that kill us:

We even have killer body parts:

What’s your favorite ‘killer’ expression?