I love these little guys. I used to find them on my back door all the time when I lived in Florida. We also had those toads that excrete toxic stuff out of their back. My dog got a hold of one and started to foam at the mouth! Luckily he was okay after we washed his mouth.
This guy below used to hang out in front of my garage every night.
Then there was this green frog:
He was always hanging out on the hose box out back. Frogs are pretty cool little critters.