NYC haiku signs cater to short attention spans

In a culture that increasingly expresses itself in fewer than 140 characters, New York City thinks it's found a way to grab a piece of that ever-shrinking attention span: haiku for public safety signs. I think there should be one for people who waltz into traffic on their cell phones, unaware there are such things as traffic lights.

Speaking of which, here's a good one:

Oncoming cars rush
Each a 3-ton bullet
And you, flesh and bone.