These guards are so incompetent.
Surprise visit the prince... I don't think you thought your cunning plan all the way through.
Just some old man. No one of importance. No idea why everyone says he's obviously the king.
They found their shared braincell. Doesn't matter how old they get; boys will be boys.
They could work on their landing.
The way he's explaining it makes it seem like if people knew about the sixth floor they'd have to make it open to the public.