I had a bunch of quarters in my pocket. About six dollars worth, along with a couple of one dollar coins.
I pulled all the change out of my pocket and placed it on a desktop. I walked away.
A few minutes later, I went to grab the coins so I could bring them to my office and toss them in the coin jar.
One of the coins, quarter or dollar I can not say, was standing on its edge.
My hand was faster than my brain, so I grabbed all the quarters up, thus knocking down the standing coin. I was therefore unable to test the hypothesis that if you drop some coins somewhere and one stands on edge, you can hear people’s thoughts until the coin falls over.
I do remember hearing a static like sound that meant nothing. The only other creature in the house was the cat. So, that makes sense.