Was the Grey's Anatomy Finale Believable?

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You obviously remember that on the May 20 Grey's Anatomy season finale, a madman with a gun and a grudge walked in and went on a shooting spree at Seattle Grace Mercy West.

It made for gripping TV, but one thing some critics have pointed out is the perceived lack of believability - would anyone off the street really be able to roam freely as Gary Clark did?

TV Guide explored this very subject yesterday, and according to Dr. Glenn P. Kelley, cardiologist at East Jefferson General Hospital in Metairie, La., it's both very possible and unlikely.

"Patient room doors do not lock," he says, "so doctors can get to them if we need to."

On the flip side, "supply rooms, pharmacy rooms, and rooms with sensitive/expensive equipment and call rooms all definitely do lock." Oh, and there are entire wards that do as well.

Maternity and psychiatry, for example, are kept on 24/7 lockdown to prevent the wrong folks from getting in or out. In other words, Clark's free rein was probably a bit of a stretch.

That didn't make it any less captivating to watch, but it's interesting to note.

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Grey's Anatomy Quotes

MEREDITH: "You don't get to call me a whore. When I met you, I thought I had found the person that I was going to spend the rest of my life with. I was done! All the boys and all the bars and all the obvious daddy issues, who cares? I was done. You left me. You chose Addison. I'm all glued back together now. I make no apologies for how I chose to repair what you broke. You don't get to call me a whore."
DEREK: "This thing with us is finished. It's over."
MEREDITH: "Finally."
DEREK: "Yeah, it's done."
MEREDITH: "It is done."

Arizona: Oh my God! I mean, I understand why you're into her. She's hot. Wait, she likes you?
Nathan: What? I mean, I'm going to try not to be offended at that.
Arizona: No, no, no. It's just that Derek was, Derek was epic for her. They were the great love story. I mean, that girl's heart beat for Derek Shepherd. It just, it never occurred to me that she would ever be with anyone else. He was perfect. He was everything. That man turned her world. It, I spooked you. Don't be spooked.