oh and never go out without biscuits in your pocket once he knows you have food in there,he will be abit more faithfull to you.but only treat him when you call him back if he dos not come go and get him give him a good telling of by grabbing his neck and shakeing him as this in forces you to be a pack leader in dog world thats what dogs do,it wont hurt him and never tell him off when he comes back in his own time as,if he comes back to you shouting he will just get worse.so only tell him off with you getting him but dont chase as he`ll think its a gane just walk up calmly the grab him.i think