Today my dog and I ran into a brown bear in the woods on our morning walk. My dog was in the middle of a poop so I had a few seconds to think about what to do. Since the bear looked well fed and stopped when he saw us, obviously also assessing the situation, I decided to simply walk in another direction (we were on a collision course) and scooped up my dog when he was done and walked into the woods away from the path. It worked. The bear went his way and we went ours.
In retrospect, I wished I had seen a bit more of the bear, but this was a situation, I think, where it was completely excusable not to be curious and where curiosity might not only have killed the cat but the dog and human as well.