ER had several jokes that came from his uncle Lubert Theiss. Lubert was a dairy farmer in the hills of Meigs County.
On one of Uncle Lubert’s barns, the sliding door had not one cat hole, made so cats could enter and exit the barn, but six cat holes. When asked “Uncle Lubert, why do you have six cat holes in your barn door?” Lubert replied, “When I say scat, I mean SCAT!”