"I cannot persuade myself that a beneficent and omnipotent God would have designedly created the Ichneumonidae with the express intention of their feeding within the living bodies of Caterpillars, or that a cat should play with mice."
"Ouiji boards are one of the simplest of things to test. Simply have the sitters wear blindfolds"
Oiuja could not work and does not work if the participants are blindfolded! Why? The participants need to see the board to spell out the words.
This proves only one thing, it is not likely to be be spirit forces physically acting on the hands of passive participants holding the glass or planchette.
Is it spirit forces acting on the mind of the participants and then through the participants acting on the glass, or is it the ideometer effect?
The effect of blindfolding of participants does not prove either theory conclusively.
Verdict? The jury is still firmly out!

Do you drive? Ride a bike? Sight-read piano music? Touch type?I wanted to feel the ideomotor effect for myself
...It all came to a grinding halt when one answer was "Woof" and me and Paul just fell about the room crying with laughter. To say my mother was livid is an understatement.
I have a Ouija board story. Years and years ago after my sister "found Christ" we were having a fire on the beach and she decided to burn her ouija board. She tossed it in and we watched it burn for a while, then she tossed in the plastic pointer. It was a plastic, as I've said, had some glued on parts and a little window so it was no surprise to me when it crackled and hissed a bit. But, oh lordy, it was proof to her that a demon was released because it wasn't plastic melting, no, it was a demon screaming. Just another slap to the forehead moment.