i spent 3 years as a diesel engine mech and also i worked on heavy transmissions and that was one of the diryist job i have ever done! to the most part oil and road grime are not all bad, but when you are in Florida, in the summer time, and a garbage truck loaded with trash comes in for work it is no joke when i talk about raining maggots from the truck!! I would have to have an air chuck i one hand to blast off the work area and my wratchet in the other to pull bolts!! And if the truck sits for a few days the smell is almost unbearable!! there would actually be a river of maggots crowling from the truck stall and go across the driveway and you would hear them pop as cars would drive over them!! yes garbage trucks are about the worst, but every job i did there left me a total mess!! i dont have enough time to type in all stuff i got into but it was by far worse than some of the shows aired!!