Absolutely - it's something I am glad we never see around here. Our dogs rode in the back of Dad's pickup sometimes - when we kids were there, and it had a seat up against the cab of the truck, and a cap on the bed so none of us could fly out.

Dad did get a sliding window installed between the truck and the cap, which we referred to as "the woofle hole" becuase our St. Bernard Freckles delighted in sticking her head through (which filled the whole window) to woofle the ears of any front-seat passengers!