An amazing video highlights the unexpected dangers on the highway.

Driver Wendy Cobb was shooting video when a truck in front of her sent a two-by-four through her windshield.

Cobb said the two trucks were driving carelessly so she wanted to record them to report them to their employers.

But that was the least thing on her mind after the two-by-four shot through her windshield like a missile. Fortunately she wasn't hurt.