Thanks everyone. :)
Kickshaw - that Anti grazing device looks heaps better than the daisy rein I've got. Thank you.
Its just so frustrating and annoying to see him do it. With Ellie only being 5yrs old, if he does it and catches her unaware she just doesn't stand a chance. She's riding him again later today, I might try and fashion something together with some bale twine for now... Good old baling twine eh?