My long haired GS dog is a rescue dog. He is a great dog, but if you want to show, you cannot do it without registration papers. I don't know aobut agility, but a show dog can't show without papers and they cannot be fixed where a pound puppy must be spayed or neutered.

I adopted a dog from the pound once that we had to take back. She was nipping at the kids and going for their faces. She wouldn't do it to the adults, but with the kids, and bad thing was she wouldn't quit until she actually got them. I had already gotten her shots, gotten her spayed, and had her about 8 weeks or so and it just got worse so we had to take her back. I don't know what happened to her, but I told them that she would be a good dog for an adult couple or older couple but no one with kids. Sad thing is, she was for my son and he had picked her out. I didn't want her put down and told them so, but I am afraid that is probably what was going to happen.

So I have had mixed results with rescue dogs. The GS is great, was a year and 1/2 old when we got him and the mixed breed we got was a little aggressive towards kids and was a medium sized dog. They said she was a beagle mix, but who really knows.