Which would surprise you more?
an extremely unlikely event that’s only barely possible (theoretically at least)
a completely impossible event
See ResultsMaking a push poll doesn’t change my answer. A fairy showing up causes one thing to change, “I was wrong about fairies.” A Walrus showing up means it coming out of the nearest zoo that has one unnoticed, traveling down the highway for multiple days/weeks without being noticed or dying, and showing up at my house specifically, then knocking on my door.
On top of all that, if a fairy were to show up at my door, it clearly wouldn’t have been impossible. So it’s not even a good push poll when you apply the proper suspension of disbelief a hypothetical requires. Fairies are presumably much more mobile and have a less restrictive diet than walruses.