Hi, we are getting a puppy who will be about a 50lb adult dog. The plan is for him to travel in the third row (passenger side) in our Odyssey, restrained in a sleepypod harness. But my youngest is travelling in a Grow with You on the driver's side...the seat belt buckle is on the dog side of the car seat. Is there a safer way to cover my son's seatbelt buckle so that doggie doesn't step onto the red button loading or unloading or even, if he's long legged, while driving? Also, has anyone used the sleepypod harness? I watched their crash test videos and wondered how much side-to-side movement dog would travel in a collision (esp a side impact); any thoughts? I'm worried about passenger side dog still impacting driver side child with his 50lb body in an accident.