My very first call-out while doing my ride-alongs last spring while in EMT-B class:
Get a call for "trouble breathing". Show up to a house, lady answers door, is standing, talking, not in distress. Says she took her vitamins and "they got stuck in her throat and she called because she wanted to make sure her airway wasn't blocked". Yes, the woman who calmly answered the door, talking, breathing, wanted to make sure her airway wasn't blocked.
The paramedics I was riding with were very kind, had her drink a glass of water, I took her vitals, and one of the medics explained how the esophagus works and that if she can breathe and talk that her airway wasn't blocked.
She thanked us nicely for our time and we left. No transport.
I give the medics a lot of credit for how nice they were to her, and even taking the time to explain to her how the mechanics of swallowing work...
We all face-palmed when we got back in the ambulance to go back to the station.