Well. in 8+ years, including this one. Volunteers only, or stuck due to weather. In our area, most couldn't even volunteer. 5 years ago got stuck out a day due to weather in Burlington, CO. Then got moving. PAR was a ghost town at 3am on Christmas morning, waves of drifted snow. Got 200 feet into yard and truck stuck. Terminal manager said leave it, lugged stuff to car. (only one in lot). Luckily wind had cleared employee lot. Went to motel. Roads had closed behind me on way in. Couple really good terminal people heard I was stranded. Had me over for Christmas dinner. Then next day helped me dig out car at motel.