
A lady near us breeds otterhounds, and her fences are at least 6 feet high, with a thick hedge on the outside too. They are very vocal dogs and their baying carries a long way (we hear them from over half a mile away!). They also have a very 'distinctive' ;)

smell - I wouldn't want one in the house, especially not wet!
Terrific animals - but certainly not for the faint-hearted!