I had a boston terrier a while back and he had a long tail. But I see from several videos that they all had short tails. Do they mostly have short tails more then long tails or is it like 50-50?
A pure bred Boston Terrier should have a very short tail, there is a suggestion that yours wasn't a pedigree example. Don't sweat that though it could have just had a longer tail than is usual, and that's all.