Don’t Let Them Put Their Head Out The Window: Even though it looks harmless, it just isn’t safe to let your pet stick their head out the window while you are driving. This leaves your pet vulnerable to anything that might be flying along in the road, debris, bugs, even things from the cars in front of you. You should also never put your pet in the back of a pickup truck. It is so dangerous (especially on long trips) that the majority of states actually have laws against this type of animal transport!