I can imagine the conversation her parents must have had before she was born.
"Right, if it's a girl we'll call her Misty, if it's a boy we'll call him Rusty."
Remember that game people would play in school to come up with their pr0n name. First name the name of their first pet, last name the name of the first street they lived in. Misty Hyman would have been exempt, she already had the best "accidental" pr0n name.