While in San Diego two years back to celebrate our anniversary, Sheila twisted wrong and broke a vertebra. The pain pretty much immobilized her, even getting out of bed caused too much pain, so she lived on the living room couch. The surprise arrived when Allie, our cat of 12 years, never left her side. She sensed something was wrong, and stayed on Sheila’s lap or snuggled up against her. I suspected Allie would continue that, but once Sheila healed, Allie went back to her normal cat ways. But about two weeks ago…