About 10 years ago 2 of my coworkers travelling ahead of me witnessed a cube van smoke a logging truck. The pair of them saved the cube van driver's life. I'm a bit hazy on the details but I think the electrical system was arcing out and causing a fire. One of them kept the fire suppressed with an extinguisher while the other got the battery or cable cut loose. Then they got the fire out for good. I think emergency response crews had to cut the driver out, so lucky for him that they went in and did what they did.