I dunno about scary encounters John, I've run into plenty of snakes and spiders and weird sea creatures...
Someone once sawed open an old log full of huntsman spiders and grabbed and big double handful and throw them over me. They aren't a dangerous spider but it freaked me the hell out.
As for fights with minivans, I did have one very scary disagreement with my minivan but I walked away uninjured and it took a nasty hit.