Yeah, there was also one episode where he was talking about an aggressive and deadly species of snake they were searching for. In the middle of his dialog, he suddenly noticed one of these snakes right at his feet as he was talking to the camera. He went dead silent and didn't move or say a word for about 20 seconds until it slithered away. The look on his face was priceless, imminent danger. That was the only time I think I've ever seen him display true fear on camera.
I remember that episode vividly. The snakes were American diamondback rattlesnakes. He stated on several occasions they are among the highest-evolved and most dangerous snakes. He respected and feared them.
Just yesterday I watched an episode of his show set in Sri Lanka where he was charged by a wild elephant. The only thing that saved him was a tree that happened to be in exactly the right place. Maybe he planned it that way but he had the same frightened look on his face as he did with the rattlesnakes. I told my wife I thought he was going too far afield from the animals he knew and understood just for the sake of making the show dramatic, and he'd probably end up being killed by one. I take no pleasure at being prophetic.
I've long worried, though, that young children might be tempted into trying to handle snakes and other dangerous creatures the way Steve did, thinking it is easy. I don't think his shows placed enough emphasis on dangers to the inexperienced.