People who screen their phone calls for no reason. I hated this before, but now that I'm a telemarketer it's really irritating. Like I have to try your phone again tomorrow anyway, so you may as well pick up now.

If you're not currently busy, just pick up the damn phone. It's not that hard. Sometimes my parents will be in the same room as the phone and just let the machine get it. Like...
Another thing about telemarketing. People who hang up on me mid-sentence. "No, thank you." is
not that hard, people.