OB appointments

Am I the only one who ALWAYS sits 30-45 minutes waiting for a 10 minute appt?? They say you have to arrive 15 min early but I'm so annoyed with this wait time everytime I come in. And no one ever says anything if a doctor is running behind... One time I just had to get up and leave because it had been an hour and a half wait. Waited 30+ minutes in a doctors room with absolutely no one coming in to say anything. Next pregnancy I think I will have to find a new OB office to go to. 🙄