At the moment stuff like this can happen:
You're chatting, suddenly the key press pops up, you press the wrong key because of that.
You press the right key but press a wrong key right after having pressed the right key, so it still kicks you out but rewards you with the 150 units from pressing the right key, lol.
Another thing that happened just now.. I got thrown out of the casino even though there was no key press on the screen.
It just told me that I pressed the wrong key and boom.. Apparently that's a thing too...