amazing. After only half an hour Gavin had worked wonders with Casper. I'd been hoping that Gavin would come along and flick a switch on Caspers tummy to calm him down and stop biting - he did! Already he seems a different dog and this morning I'd thought I'd come down to the wrong kitchen, all was calm. Happy calm puppy equals a very happy mummy. Thank you. Looking forward to our next appointmen t.