The first test asked me to call my dog using a variety of words that were not her name to gauge whether she could tell the difference. I called out “refrigerator!” and was pleased to see that my dog did not respond. She also failed to respond to “movie,” “dishwasher,” and “banana.” I was beginning to feel very proud of her. Then came the crucial step: I called her name. Nothing. I called it a few more times to be sure. Still nothing.