Thanks for the advice I'll try that. I had him sitting quietly by the hay rack while i loaded it, he'd been calm for a month so i stared taking him in off the lead and he was fine, (this was with some shearlings not the in lamb ewes)then one day something spooked the sheep and they ran and that was it he was off and obviously not lisening to my calls so had had to just walk away and leave him to it, eventually he tire of it and came to the gate. I made a mental note to myself to NEVER let that happen again. I moved my in lamb ewes to a fresh field and forgot I'd done it and casually wondered through said field with Billy (my dog) half way across the field i noticed the sheep, too late, billy was off, he grounded a ewe very quickly and i caught him staight away.
anyway i will try putting him in with a ewe and lamb.