I wish I had video of my F250 dragging a semi across our gravel parking lot. We were trying to pull an ISO container off the back of a tilt deck flatbed. The container didn't budge at first and my truck dragged the semi, trailer and container backwards about 10 feet before the container started to slide off. I could hardly believe it myself. The semi was in gear pulling the other way. My truck was in 4 low.