I often wonder if I could scare the shit out of any creature on earth, by sneaking up on it and screaming. I think it would be fun to do that to a serial killer. Like a Charles Manson type. It would just be funny to startle that type of guy. I would also be curious at the initial results of doing that to a tiger. He would no doubt kill you for it, but it would be cool to know that you scared him first. Sometimes I wave to people that I don't know. Not to be nice but mostly to see the confused look on their face. The fact that they find it friendly kind of makes me feel good though.