I ask this because I have taken it for granted; Sandstorm and I have practiced sit stays, freeze stays, and he's been perfect! We did this because about a year ago I realized we weren't practicing at all, and it showed. Sandstorm's recall is great outside except when he has found something to eat, lol! Today we went to a pet supply store, he met people and dogs, he was excellent! We met dogs on an open trail and he was great. He's perfect on walks except when other people pass us on the road. I used to have him sit/stay and give a treat, and that helped, because he will bark and spin a bit when people pass. I haven't followed through with the sit/stay/treat on walks for quite a while, now I am wondering why- we have to get back to that!! Since I'm getting a puppy soon all the more reason to do it! And training can be fun- but it is life long for the dog.