Edit: TotalBiscuit has popped up a vid of the following, and in a far more humorous manner:
Click Here!
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Here, I find a great number of hostile tentacle-controlled night elf NPCs, as well as a great Eye of C'thun overlooking it all:
I then realize that the Eye has a *chat* bubble on mouseover. Intrigued, I fly up to it and right-click, and get this:
(It's probably the PTR default chat, but being greeted with "Hi!" by the Eye of C'thun made me laugh )