Blowing Smoke

Had the weirdest thing happen Sunday. We had finished dinner and was out on the deck and hubby did a big burp. He blew what looked like smoke from his mouth and nose. I have never seen anything like it. He does not smoke and he said it felt real dry, so was not a vapor of any kind. Well this has bugged me till last pm when it hit me as to what it was.

After he ate his dinner he had taken his vitamins, and he has quite a hand full to take. I think a few minutes later he did his burp and one of the capsules had dissolved enough that the powder inside flew up his esophagus and came out his mouth and nose with his burp. That is the only logical thing I can think of. Isn't that the weirdest thing ever??