Well, I've boosted a few turtles across.....once i moved a big, injured snake off the road, but I probably just prolonged his death--he looked like he had been run over once already.

When I was younger, I took a walk, and found a puppy trapped in a ditch. He had been tied out somewhere with bailing rope, had broken it, and the broken end of rope had gotten all tangled around some willow and cattails in the ditch. Nobody around the area knew where he came from.

I always wish I had been able to keep the poor thing...he was a bit of a wierd, paranoid pup, and ran off after our family dog took a dislike to him and attacked him. The farmer down the road took him in, then gave him to the Humane Society when they couldn't stop him from chasing the chickens and turkeys.