I think I actually had a coat once with a hidden pocket like this that I didn’t know about until I had it for quite some time! It wasn’t big enough to hold a lot, but it was a very secret stash. Even some coats I have with inside pockets blend in very well, but those probably wouldn’t pass someone searching me at a checkpoint of any kind.
Oh my, I can’t even begin to imagine what a Texan or Creole Welsh accent would sound like if that was the international language! 😵💫