(Possibly Stupid) Reason #1:
TPM
<Obi Wan Kenobi> But Master Yoda said I should mindful of the future... (perhaps implying knowledge the other Jedi are going to be slaughtered -- very far fetched)
#2
TCW
<Yoda> Too sure of themselves they are, even the older, more experienced Jedi.
(This one is far fetched and only through broken English possibly relevant)
#3
TCW
<Yoda> Until caught the killer is, *our* opinion - she must respect
Followed closely by Palpatine playing Chancellor with Anakin, this is deep in the movie.
#4
TCW
<Yoda> Only the Dark Lord of the Sith is aware of our [shortened capabilities]
Spoken in the presence of Palpatine.
And last but not least, the CGI close-up of Yoda when Amidala's life had just been threatened in the beginning and the Council was discussing with Palpatine what to do ->
<Palpatine> I realize this disruption would mean added security, but perhaps an old friend, Obi Wan Kenobi.
If you see the possibility I'm not a complete geek (though I hold no grudge to those who do) make a concious effort to at least humor the idea that Yoda was aware of Palpatine when watching Episode II. As was said in Episode I through Qui Gon - Your focus determines your reality. That is all. If only more nerds were as understanding perhaps pencil protectors wouldn't be a defining point or as defining. They have their function, stylish no, but functional.
Dan