(Mascouche, Quebec, Canada)
Since BT's are known as the American Gentlemen... I thought that Sir was definitly befitting.
I was away on a short field trip to NYC last spring and our group had an hour break by the museum of natural history. There was a dog park nearby and a trainer walked by us several time walking 3 different BT's. I had been hesitating between the min pin, carlin, beagle and BT, but as I saw the beautiful, noble-looking Boston Terriers... I knew it's what I wanted and that he would have to be named Sir!