The Blowhole at the Top of Your Mouth

Yesterday the Captain asked me a question.

"Hey StealthJew. You know how I'm not all that aware of my body and health, right? Can you tell me if something is normal?"

"Sure."

"You know that blowhole at the top of your mouth?"

"You mean your throat?"

"No. The hole in the roof of your mouth."

"There's no hole there."

"Yes there is. You know that hole, the one in the roof of your mouth."

"I have no idea what you're talking about."

" . . . *expletive*"

Turns out the Captain has a cleft palate, with a teeny little hole right on the roof of his mouth. The roof of his mouth is also, for the record, kind of flat. After presenting him with Munchkin's mouth as well as mine, I've convinced him that this is not the usual way of things.

Yes, it is strange that the dentist didn't mention this. I realise no one explicitly asks dentists to count the number of orifii in the mouth, but you think they'd mention it.

"By the way, you know you've got an extra hole in there."

Anyone ever known this to exist in an adult? Any suggestions?