I'm not about to judge people for letting their dogs ride in the bed of the truck. I definitely prefer to see them in the climate-controlled cab, but, for the most part, I don't have that big of a problem with it. If they are in the back, I prefer to see them restrained somehow, whether it be in a crate that's strapped or tied down, or a line to keep them from jumping out. I think the crate tied down is the best way. But, again, I don't really have too big of a problem with it. I know it's not the safest way to travel, but, neither is letting my dog sit unbuckled in my car. And, I do that. I want to get a new harness for him for trips, but, I haven't done it, yet. I know I wouldn't personally put my pet in the bed of a truck, but, for the most part, it only really bothers me if the pet looks too hot or cold or completely afraid or if the person is driving recklessly. Or if it's a bed that is full of crap, especially when you know the stuff is dangerous, like farm equipment or something.