Each of the sofas in my living room has three cushions, room for three people to sit comfortably or more than that if they're friendly. I sat on one end, reading quietly, and Kadi lay next to me, her head touching my thigh, and stretched across the second cushion onto the third. Butch decided he wanted to join us.
He stood on the floor at the far end of the sofa, sniffing Kadi's extended feet, then turned his head and shoulders to sniff the arm of the sofa. Then he did it again. Back and forth he went, sniffing Kadi and the sofa arm five or six times before I realized what he was doing: He was carefully measuring his target area.
Satisfied, he stepped to the center of the measured distance, bunched up his hindquarters, leaped up, landed, turned around, lay down, and rested his chin on the arm of the sofa, his feet a few inches away from Kadi's.
It's been a little over three years since Butch lost his eyesight. You'd think I'd be used to it by now, but I'm still impressed when he demonstrates his problem-solving skills.
He's a mighty fine dog.