Mail trucks are supposed to deliver good and bad news, not make it. But sometimes the post office's mail trucks do just that. These semi-trailer trucks carry thousands of letters making them heavy and dangerous when they are out of control. Just like any large semi-trailer truck, the consequences of mail truck accidents can be devastating. And just like most big truck accidents, speed is often the culprit. Either a small car makes a sudden move to cut off a slow-moving "big rig," or a truck driver rushes to get the mail to its "appointed rounds" on time, but if those two forces collide, the result can often be injury or death to the occupants of the small car. If this has happened to you or a family member, you need to contact a truck accident lawyer to help determine if you are entitled to compensation.