my friend had a 3/4 greyhound 1/4 collie that would trot down the beam towards a squatter or just a rabbit standing there in the middle of a golf course then it would slowly stop 10 yds from the rabbit and lay down it wouldnt chase it unless it started to run the lad used to get boiling with his dog he would say callum let your dog off a would say no that rabbit is for your dog laughing then a would eventually slip my whippet which ran straight past his dog lying down and catch the rabbit most times he got some stick for that off us ah ha ha