Tug did the same thing today. :( This time I didn't even have the halter. So I went to get it, and I grabbed the stick. He wouldn't come back if I started to draw him in, and turning away only caused him to stop. So as he started to leave I tagged his HQ like, "Fine, go!" He easily came back when I followed him. I eventually had to halter him because I had to get the bot fly eggs off his legs.