What does it mean when you dream about a semi truck?

I had a dream that I was inside a house way out in the country and there was this out-of-control semi truck veering on and off the road and swerving on and off the property. It kept coming real close to hitting the house then it would swerve away at the last minute. It finally caught on fire and sped away across the field and then I woke up. What the heck does this mean?