The craziest I've ever heard is definitely the side of the road birth story by our very own @matador84!
She had her baby on the side of the road and her friend caught the baby!
In case anyone wants to read it:
http://boards.hellobee.com/topic/my-side-of-the-road-birth-story

Eveyone else I know IRL have had very "normal" birthing experiences.