Ocean's Thirteen (2007) - 3 questions

Question: This has a always perplexed me about Ocean's Thirteen and the egg. Danny/Rusty already had the real egg before Toulour got to the museum. So when Matt Damon and Julia Roberts went into the museum, they were actually trying to steal the fake egg. But when Matt Damon did the switcheroo and took the fake egg and placed the hologram on the pedestal, that meant there really was no egg there. So when Toulour went in to steal the egg, what could he have stolen?

Answer: First off, that was Ocean's Twelve. Anyway, they never did make the switch at the museum. However, they'd already switched the egg before it ever got to the museum, so either way, Toulour was going to be stealing a copy. The reason they continued to keep up the act that they were trying to steal the egg was because they needed to string Toulour along just as LeMarque tells them in the flashback toward the end of the movie.

Question: This is actually a few questions about the same thing: Why did Matt Damon say 'the nose played' so often? What was so important about his fake nose? Also, here's another question: why was he wearing a fake nose in the first place?

Answer: Linus was trying very hard in all three movies to prove himself to Danny, Rusty, and his parents. The nose is obviously his innovation, and he wants to show that it's a great disguise entirely of his own creation... even though it's pretty obviously superfluous, as it seems that no one recognizes him anyhow.

Question: Can anyone give some insight as to what was used to contaminate the hotel reviewer's room?

Answer: I don't think there's any way of providing an exact answer to this question, but I think it's safe to say that whatever materials they used were highly bacterial but not lethal (otherwise the 5 Diamond Award critic would be dead or in serious condition).