If you have ever been behind a loose load you know how nerve wracking it can be. If, say, a small stone or corn kernel pops into your windscreen, you may have the scare of your life. This does not even take into account the damage that can be done. This is where a truck tarp plays an important role.
Some regions have laws against hauling uncovered loads in a truck bed. The failure to cover up can result in fines at the very least, and accidents at the worst. If you are a truck driver please cover up for the safety of everyone around you.
Having said that, as a driver who does not haul loads, it may interest you to know that sometimes the load haulers really do not know that there cargo is blowing around back there. In some trucks you cannot see what is going on directly behind you, so you can motor along without a care in the world.
If you see a dangerous situation, by all means try to alert the driver to it. Of course, this must be done as safely as possible. Try not to use rude gestures, or obnoxious honking, or anything that can potentially make the whole thing worse. Just get their attention if you can, so that the situation can be remedied.
And by all means, if you drive trucks, please use a good truck tarp every time you haul. The truck tarps are inexpensive to buy, easy to use, store nicely, and can save you a world of headaches on down the road. Use them for all of us out there with you.