I've seen the splatter zone signs at zoos, but none of the others. I have to admire a hilariously blunt, over-exaggerated sign. They make me laugh AND make a point.
Great song. I recently found the old Four Tops song "Loco in Acapulco" which is just so energetic it can't help but put you in good spirits. Also on my list are "Ordinary Day" by Great Big Sea (which really is a must listen! It's on youtube), "I Stand" by Idina Menzel, and "Lucky Today" by Cloud Cult (from the eSurance commercials lol).