1. Meredith pulled the plug on Derek without even telling his family before she did it.
2. When Izzie not only had a relationship with dead Danny they also had ghost sex. And how Lizzy didn't get something was wrong even though she's a doctor, lived with doctors and her BFF boyfriend was a lead neurosurgeon
3. When Arizona cheated on Callie and straight-up blamed her for amputating her leg...even though it saved her life.
4. When — yes, we have to talk about it — the musical episode happened. Grey's Anatomy is NOT the kind of show that can pull off an episode of only singing.
5. When Cristina didn't win a Harper Avery award because of the hospital's connection to the Averys, BUT then Meredith got the same award years later even though she's in the EXACT SAME situation.