When your mom was supposed to pick you at after school, but she's late, and the teacher aide is starting to ask questions. When the driver says he's in front of your apartment, but you don't see him anywhere. When it's almost closing time, and you want to catch a ride before surge pricing starts. When you have to call the doctor, and your sister refuses to talk for you, so you have to make the appointment yourself. When you've been on the line with customer service for over 30 minutes, and they're trying to transfer you to another person again. Image Source: Getty / SAUL LOEB