When I schedule a podcast, I expect the guest to show up. I am very understanding to sudden changes, computer issues, or emergency situations. However, just not showing up is disrespectful and even worse if I allow it. I give grace but if I don’t hear from the guest within 10 minutes of our appointment, I move on. I have to respect the time in my day and so should you. It’s not rude, its rude not to.