jiorji, dakotah is only allowed off-leash if he knows all the dogs in the park and everybody's "cool" with one another... on weekends alot of new people pop in and out and if he's on a leash, it's easy to quickly exit the park with him to avoid any trouble (rather than yelling and running after him from faaar away...). he's totally fine with most male dogs BUT sometimes new males will challenge him for top-dog status and then in a flash you have a fight on your hands. i can recognize a dominant dog a mile away by their body language (but still training hubby... sigh) so if one approaches, dakotah is quickly walked out of the park and everything is fine. half the dogs in that park are intact btw... although many neutered dogs try (unwisely!) to jump him. they don't do it twice, LOL!