Okay, so last Sunday I purchased a citronella collar for Jasper, my wheaten terrier, as he had developed a terrible barking habit several weeks back when we had some weekend guests who apparently unnerved him. So. The citronella spray not only INSTANTLY stopped his problem barking but seems to have rid him of all his other problem behaviors. He no longer jumps up on people, he no longer bites my son (remember my thread last week?). He is calm and quiet, very out of character for him yet appreciated by all of us. He is receiving so much positive attention, my son is no longer afraid of him, and we are all doing great. But the question is, why? If the citronella spray acts as a bark deterrent because it is activated by his bark, why have all the other undesireable behaviors also disappeared? This has been for a full week (I got the collar last Sunday). I am so curious...ideas?