Yes, I believe once the dog is mature / solid foundation in training and proofing has been done so you know it's real and not chance that a dog should respond under any circumstances.
I prefer your first example - off leash hiking and dog takes off after wildlife ... my dog better come back LOL I don't believe it's a dog being a dog ... Depending on where I'm hiking, I've let Ky chase squirrels til she trees them, or I'll call her off it immediately. And she ALWAYS comes back INSTANTLY - regardless of when I've called her. I use different times when she's chasing so that I am constantly testing her recall.
I've tested Kyleigh's stay with a number of distractions - I've thrown her favourite toys and had them land right beside her, I've tossed food in her direction, had it land about 5 inches from her nose ... should she move? Absolutely not.
Your second example - personally I think the owner was showing neglect in placing his dogs in a "bad" place to be told to stay. In this situation, I would have assessed WHY my dogs moved - AHA forklift ... SMART dog for knowing to get out of the way ... dumb owner for putting them in a precarious situation, and not being there to look after them.
Marion’s Zoo-Kyleigh, Raylan-cat, Echo-TAG,