If this turns out to not be true, and just said for the amusement of thinking of all the people jiggling their keys at insects, it reminds me of something a friend in high-school said to me:
"If you peel a banana, take a bite off the top, and then poke your index finger in to the middle of it, it will split in to perfect thirds".
Upon trying this, I discovered it was not true, and my friend just wanted to see me stick my finger in a banana...