Mess with the mixer, you get more than the horn.

There are plenty of reasons not to cut off a cement mixer on the highway. For one, if they rear-end you hard enough, there's a good chance it'll take the Jaws of Life and a hose to get all of you off the road. That's why the lady driving the black car in this video should consider herself lucky. Although, she probably didn't feel that way as the truck pushed her down highway like nerd getting "the business" from a playground bully.

Sources: Digg