(CNN) — Mike Miller and Benjamin Radford have both spent years talking about Bigfoot – from very different points of view.

“When you hear something or you see something, you know, that sticks with you and becomes part of you, and you just can’t shake it,” says Miller, who’s been on the hunt for the yeti for nearly two decades with the Ohio Night Stalkers.

“It’s a fascinating question, whether or not these creatures exist,” allows Radford, a folklorist and deputy editor of Skeptical Inquirer magazine.

But that’s about all Miller and Radford agree on when it comes to the existence of an unidentified species of hairy giants.

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