7.5 years ago, I was working on a vacuum excavation crew, doing soft digs on utilities, using compressed air, and the vac hose. Air full blast, probbing for an 8" gas main; in some mucky, wet ground, with mixed layers of hard pan. I got the air Lance clogged, and went to pull it out, without turning the air off. As I pull the 16 ft air Lance up, into the black, cold, water and muck, the clog releases; Drenching me head to toe in cold black much; and the white Ram 5500 vac truck. End of the day, I take the vac truck home; strip down to boxers on the porch and take a shower. Wife gets home; walks in the the door, and first words "please tell me that's not ****"