“Grey’s Anatomy” recap (11.16): Steak. Knives.

Meredith tells us about the very important piece of advice that doctors try to keep in mind: “If you hear hoofbeats, think horses, not zebras.” It’s about looking for the obvious answers, ruling out the most likely ones first because that’s usually what it is. However, we can’t always help that our minds race with the black and white flurry of zebras dashing by. Meredith is haunted by her phone call to Derek, the one where a strange women picked up the phone and said nothing. She’s thinking about a whole herd of zebras right now.

April is back full time and she’s like a bunny on caffeine. She’s happy and excited to be back in the ER, so much so that she pulls Jackson into an empty supply room where they start making out. Jackson tries to gauge if his wife is alright, but it just pisses April off. For once, she wanted to not think about the tragedy that they recently experienced. Also attempting to get down are Owen and Amelia, whose make out session is interrupted by their pagers.

Derek is not answering his phone, and Meredith is trying to keep the gnawing feeling that Derek is cheating on her at bay. Meanwhile, Callie (and her leather jacket) struts into the hospital with her lady date in tow. She and the perky blonde (I see a pattern) had to end their date before it really started, but her date isn’t leaving without some sweet Callie kisses. Callie obliges, and all is fine until Arizona spots them through a window. Callie looks up to see her ex-wife staring at her, and awkwardness ensues. While Callie has every right in the world to move on, making out with your date in the hospital where you ex works is less than thoughtful.

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But such is life at Grey Sloan Memorial. This is why whenever I break up with someone, I try to Eternal Sunshine that shit right out. It has yet to work. Sigh.

Meredith heads to the on-call room where she wakes a sleeping Alex (and a bonus Maggie!) to tell them about her weird phone call to Derek. Maggie asks “what kind of woman” it was and in Meredith’s head she was “happy and tall, with a lot of great hair.” Maggie and Alex assure her that it’s probably nothing, and their support session is interrupted by a trauma page.

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Callie and Arizona take the elevator together where they both try to avoid talking about what just happened. Arizona compliments Callie on her dress, which is new. She’s buying new dresses: This is officially a sign of moving on, and Arizona knows it. When the doors open, Callie springs into action on a trauma that’s come in. She changes from her little back dress into her scrubs right in front of everyone. Arizona, we saw you sneak a peek, and we don’t judge.

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Jo and Stephanie give the attendings the low down on the trauma, and Jo balks when Owen tries to assign her to Arizona’s patient instead of Callie’s. Well, Callie’s patient is also Meredith’s and no one is more obsessed with the streak than Jo is. Callie rushes to attend to the patient, Tom, who was hit by a car that crashed into his home. His pregnant wife was also injured. Tom’s in seriously bad shape, and Arizona’s patient is missing. The wife, Claire, is chatting with her mom on the phone in the hallway and seems to be doing fine already despite a head injury, cuts and bruises. Tom wakes up briefly, and screams for his wife. They rush him through the ER and he runs into Claire, and they share a moment of comfort before Tom heads to the OR.