Well, by crikey! You wouldn't believe what just happened...
Having tracked down bully sticks since you all raved about them so much (they are called pizzles here by the way!) I decided that Bluebelle could try one tonight.
She is really, really quiet - but we just had a solid 5 minutes of barking at this thing and running away from it

I took a video, I'll work on getting it up on here ....but what the heck! She acted like an alien had landed in the kitchen!