I didn't dare to let mine off leash much at all before and even less now. He normally gets to drag a longline at places where no people or traffic is anywhere near and is usually good at coming back unless he sees/smells something interesting, but we had a pretty close call a few days ago when we were out on a big field with only one road at the opposite end of the field about 500 meters away and I let him off to run. And where does he run, yeah you guessed it. Straight onto the road at full speed, ignoring me and mom completely. He has no fear of cars or anything whatsoever. Luckily there were no cars around, but after that incident he is not going off leash at all in non-fenced areas until he's got a solid recall.