At least dogs couldn’t call you on the phone.  The guilt trip had to be laid as one left, and by the time one returned, the silly buggers were so overjoyed, all sins were forgiven.  Dogs were eternally optimistic.  They seemed to believe each abandonment was the last and each homecoming eternal.  They were Catholic not only in their ability to inspire guilt but in their unwavering faith. 

–Nevada Barr

in the novel, Liberty Falling