There are times when I conclude that I must be invisible. I mean, I’m physically here, obviously – far too much of me, in places – but the effect of my presence is so insignificant I may as well not be. This morning I spent ten minutes trying to make the dog stay in her bed, only to be met with various canine expressions ranging from bored indifference to downright dismissal. Just as I gave up, I heard the creak of a floor board as my husband came down the stairs. The dog froze, listened, then shot into her basket as though it were lined with gravy bones.