Merry looked round in dismay and disgust. 'Let's get out!' he said. 'If I had known all the mischief he had caused, I should have stuffed my pouch down Saruman's throat.'
'No doubt, no doubt! But you did not, and so I am able to welcome you home.' There standing at the door was Saruman himself, looking well-fed and well-pleased; his eyes gleamed with malice and amusement.
I just read this part (in a physical book, 2005 Swedish translation), and it confuses me.
While they do meet Saruman on their way homeward, and his name is mentioned in the chapter, nothing (to me) suggests that "Sharkey" is supposed to refer to Saruman. It's almost as if the author meant to have Merry drop that comment after Saruman had made himself known, which happens just after Merry refers to him having caused all the mayhem in their hometown.
Unless I'm mistaken, when Saruman speaks at the door, it's supposed to be the "last big plot twist", with only clues suggesting that it might be Saruman, but nothing has been established... except for Merry the "spoiler hobbit" inexplicably saying it right before.
I've probably just missed something again. I seem to be easily confused as I've had quite a few instances while reading this trilogy where things didn't seem to make sense before somebody else explained it to me.