Mine has the little cork screw tail as well,I have often been asked by people why has his tail been docked,well it hasn't it's perfectly natural and FWIW tail docking has been banned in the UK since 2007,is always my reply to them.
BTW my vet had a job to find his tail at first it was that small,also another bit of useless information!out of 60,000 people in my town I have the only boston,I kinda like that
