His wife has a guest who she quite likes but he cannot stand. It being lunchtime he is sent into the kitchen to prepare a snack for his wife and the guest: eggs on toast. From the kitchen he can hear the guest pontificating about the virtues of free range chickens, the moral duty of us all not to waste food, the joys of home bread making, and so on and so forth. As our man conveys the second egg to the second piece of toast it falls into the dog's bowl, which contains some uneaten soggy dog food. He retrieves the egg, dusts it off, puts it on the toast, and serves the meal to the guest.
Bill