Exactly (about shard of glass)! I had similar thoughts. Also, Sam ran up to Dean first, which would indicate that he was closer to the window than the girl was...yet the girl gets a huge shard of glass knocked into her and doesn't seem to notice until she starts barfing blood? Sigh...

Anyhoo...hispanic? Damn. I thought he looked somewhat Filipino. Ah well, even if he isn't't Asian, at least they are being a little more diverse in their casting of rolls.

And yes, I agree with everything you say in the your last major paragraph...this episode left more things open, rather than giving us closure on anything...and the annoying part is that we're not even sure it was supposed to!