I have had this annoying habit forever. When my first child was born, my landlady had a "spin -dryer" washer. You put the clothes in the washer, they wash, then you put them in a little cylindrical tube and it spins the water out, then you put the clothes back in the washer to rinse, and then back to the spin.. you get the picture? Well, I had to count the diapers into the washer, into the spin, into the washer, into the spin, and he had tender skin so I had an extra rinse for Dia-soft, so into the washer for that and into the spin. Then that wasn't enough, I had to count them as I hung them on the line to dry, and off to the basket, when done and then as I folded them, or piled up the Dexters,( shaped diaper). So, I often to this day catch myself counting something or other, but haven't started on the needle ups and downs, oh my!
So, Kate's Nana, what causes a person to do this? Inquiring minds want to know.