Ocean's Thirteen (2007)

Plot hole: To rig blackjack card shuffling machines to make the dealer bust and everyone else get 20 or 21, its success would depend entirely on knowing the exact number of people at the table at that time. Perhaps the filmmaker is assuming all seats at the high-stakes blackjack tables would always be filled during a "soft" opening, but that seems extremely unlikely.

Rusty Ryan: Are you all right?
Danny Ocean: Yeah, um, I just bit into a red pepper.
Rusty Ryan: Is that... Are you... Are you watching Oprah?

Trivia: Throughout the movie, quotes from The Godfather are said by the actors. For example, Reuben says, "I hear cars pulling in. I hear whispering conversations. Linus crying. Why don't you tell me what everyone else seems to know?" This is almost exactly what Don Corleone is asking Tom Hagan in the Godfather in the scene where he finds out Sonny has been killed. Another quote from the Godfather is when Danny is trying to pull a on Banks, he says, "What I want, [pause] what's most important to me. . ." In the Godfather, Michael says this about his father's safety at the meeting where he kills McCluskey and The Turk.

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