What do you think is the most frustrating table game? I leave out slots, because they are the most frustrating of all. Put in money, push button, see money go away, then do it again. That's frustration to a high degree.
To me, it's Caribbean Stud Poker. Even when you get a decent hand, the dealer may not qualify and you get a crumb. Or you might even get beaten. And when you have a really bad hand, and you fold, you find out the dealer didn't qualify and you would have at least broken even.