Catherine Pfeifer is married to Paul, a deaf man whose service dog Nina has been a lifesaver. But Nina's presence out in public often provokes a multitude of questions from otherwi...ver másCatherine Pfeifer is married to Paul, a deaf man whose service dog Nina has been a lifesaver. But Nina's presence out in public often provokes a multitude of questions from otherwise well-meaning people, enough of them to have inspired Catherine to publish Please Ignore Service Dogs, a guidebook on the do's and don'ts of service animals.ver menos