Last year, a gal slid off the road into a ditch (she had a brand spanking new Escalade) when it was icy, and could not get out for the life of her. I got behind her in the same ditch and pulled her so she was straighter (I couldn't get to the front of the thing to hook onto anything). Then I got on the other side of the road in front of her in the ditch and pulled her far enough out that she could get going on her own again. Thankfully it was a pretty deserted road (mainly due to the nasty ice that no one had any business driving in), so the strap going across the road didn't lead to any problems.
At the farm I worked at over the summer, the big tractor dropped the rear right tire into this massiv mud pit that no one knew was there. It turned out the when the previous owner of the farm ran power lines to his house, he went straight through the field, and the dirt was never really packed down where they had dug. This was the first time the new owner had planted that field, and after the previous nights rain, the tractor sunk like a rock when it hit the soft dirt/mud. It took my 89 Cherokee, and 88 Ramcharger, a Chevy something or other with a 454, an F550, an F350 (both diesels, I think), and two smaller John Deere's to pull this thing out. I'd never seen that many lines hooked to one vehicle before, and I never want to be the one in the very center again. I had about 6 inches between my tail and the ramcharger on my left, and the F550 on my right