Wow...I would hope my dh would do the same. I THINK he would. I can't imagine him just watching as a crocodile dragged me under.
The other night, we heard a loud crash INSIDE our apartment. He ROLLED out of bed, landing on his feet, and then crept around the corner to the bathroom to see what it was. It was interesting to see how the instincts kick in, ya know?
It was just our shower caddy falling and spilling all the bottles of shampoo and body wash, but it was nice to know he would be so protective if there was trouble. He's such a deep sleeper, I thought I would have to wake him up if someone ever broke in!