Hi all - I'm Hershey's owner. Thank you for your comments. I like the idea of trying a gradual desensitising process, hopefully leading up to a point where we can clip Hershey at home in short bursts. He actually loves to be held and patted but becomes very stressed when he feels "handled" and any sort of discomfort is involved, so it may be a long process to overcome that. His coat is too thick to let grow long over summer so we'll need to start working with him soon. He is slowly recovering from his trauma, still showing some anxiety induced behaviours but at least he seems to love us again!