That balloon I have

Hey, look, that's my balloon. I got that balloon yesterday. Or maybe tomorrow. Hang on, that's not possible. The balloon is green.

Or is it..... well, it's kind of green, hang on, I said that. Anyway, ummm... what was I talking about again? Oh yeah, cheese! No wait, that's not it... ah! It was the balloon I was talking about. Anyway, the balloon was green, hang on, I've told you that. So there was this piece of cheese, right? Oh wait, we were talking about the balloon, not the cheese. Well, this balloon was right there, in front of me, so I picked it up and put it back on the shelf. It fell off the shelf last night, because Roger knocked the shelf because he got drunk.

Oh hang on, that wasn't it! That was when the cheese fell down. Well anyway, I can't remember how I knocked the balloon, or who knocked it, but it happened last night. So I put it back up on the shelf, wait, I said that. Anyway, you get the picture.