Dogs On a Plane

Speaking of civilised pets, we had a dog on our plane the other day.  We were belting up ready for take off and heard a little bark behind us.  You know when you look around and then look at each other as realisation sets in that you actually heard what you thought you heard? It was only little and had to stay in his travel bag.  He only barked a couple of times.   We wondered if you would be able to take your bigger breeds onboard.  Say your St Bernard or your Doberman? We were picturing them having their own seat wearing head sets! Funny!