My mom's whistle

Have you ever had a conversation with a friend about yourself and from what the friend tells you it is obvious they have no idea what's going on with you and your life? It is a very sad, lonely feeling, especially if you assume the person has a lot of insight into you and your life. I feel like I did when I found a whistle on my mom's keychain as a kid. I asked her what it was for and she said it was in case she got mugged. I imagined a large man cornering my mother in a dark alleyway while she blew the whistle. And nobody came to help.