You’re driving down the road hauling your horse trailer. You should be home soon, but it’s beginning to get dark outside. You know deer come out at dusk, so you pay special attention to the road and ditches. You meet a car with their brights on, and you’re blinded, so you signal them to dim their headlights, but it’s too late. A huge buck is standing in your lane of traffic, and you hit your brakes as the deer jaunts across the road in no hurry. Phew, you dodged it! But, the driver behind you did not see your brake lights, and - thud - they rear end your trailer. You get out of your pickup to make sure everyone and everything is okay. That’s when you notice that your brake lights are burned out. They have been out the entire time. This whole disaster could have been avoided if you tested the brake lights on your trailer.