[FBtquXT8]

Are you sure it is a pit bull? From what you are describing, I'm think more like a Cane Corso or some type of mix. Pit bulls are not suppose to have docked tails and most are no bigger than knee high and 60lbs tops.

Has the dog ever been loose? Does the dog actually drag the owner over to you or do they stop the dog? The dog sitting could be them training the dog. If one of my dogs started acting up, I would make them sit until they calmed down and then proceed with the walk or whatever.

I would go over and express your concerns nicely. Do not make assumptions. Be polite. Maybe take an offering of cookies or something. Building a relationship with this family makes more sense than making an enemy out of them since the live there.