Dogs are not cargo!
If you wouldn’t put your child in the back of your pickup and drive around, you shouldn’t put your dog there either.
Dogs are NOT cargo. It is NOT safe for them in the box of a truck.
Stop doing this.
Thank you for coming to my TED talk
the person behind you in traffic who watched your dog slam into your cab and careen into the side of your box when you slammed on your brakes to make a turn you almost missed.
PS – I almost rear ended you when you did that. I would have been more sad about killing your dog than if I would have hurt you.