Ten centuries shall the fortress stand Walls of spirit wrapped in walls of fire
And horned lords shall bow their head
To one not yet born, of the darkest sire
"Empty your bottle. Be drunken, stumbling - like Qrow. You pour him a cup, he drinks the cup. You pour him a bottle, he drinks the bottle. You pour him a teapot, he drinks the kettle. Now Qrow can drink and ha can crash. Be like Qrow, my friend!"
Chez's right eye changes color depending on some yet unexplained circumstances.
So far there's been Blue, Pink, Yellow (not seen by the public) and Purple.
I'm pretty sure I will find a good explanation for these.