Maybe this example is slightly flawed?
Nope, I think it's pretty accurate. Where teapots come from has nothing to do with the existence or non-existence of a teapot orbiting Mars.
You cannot prove there is not one.
Therefore I ask you, do you believe there is?
Don't quite get what you're saying there.
Hmm, I thought it was obvious and straightforward...
If your default position is "maybe, maybe not" then you fill your world with maybe's.
Maybe there's a teapot orbiting mars.
Maybe there's a boogeyman under your bed
Maybe ghosts exist, you just haven't seen one
Maybe pink unicorns are real
Maybe, maybe, maybe...
Somebody who says you MUST believe it if you can't prove IT IS NOT would be forced to admit there must be all of those things.
Now, I don't know about you, but I don't think that we need to fill our world with maybe's.