Prolly the strangest one I ever had to use. It was here in Oklahoma. I couldn't get to work one Winter day because my truck was literally frozen in place. I had to use hot water to melt the ice off the door and then found the tires were stuck fast to the ground. I tried hot water to melt the ice from the tires but by the time I got the last tire unfrozen the other 3 had refrozen. At this time I didn't have any sand or salt or other resources so i was stuck. I finally made in later in the day after the sun melted the ice away. (And then bought some tubes of sand on the way back home that evening.)