Like this guy, I managed to get myself stuck on a trail a few years back when my setter decided to take a walkabout and I made an unwise choice going to look for him. It wasn't cold and I did have a cellphone, although the battery died immediately after I made the 911 call. The worst that would have happened is that I would have had to either spend a night in my pickup or make a fairly long walk to the nearest house. But ever since then, I am somewhat more cautious when I'm hunting alone. I make sure my cell is charged, and I have a cord in the glove compartment so I can charge it in the truck.