Brooklyn Nine-Nine: The WORST THINGS That EVERY Main Character Has Done

Although Diaz may appear to be a total and utter no-nonsense badass with little regard for others, her actions are consistently noble and it was hard to find any moment where she crossed the line.

Sure she can be rude, insensitive and very in-your-face when something doesn't go her way, but she is always honest and straightforward when it comes to having to deal with an annoying co-worker (Boyle) or when someone rubs her up the wrong way (Boyle again).

Saying that, there was a distinctive moment in season three episode 12 titled "9 Days" where Rosa's cold-heartedness towards Charles Boyle went a little too far.

Look, I think it's fair to say that Detective Charles Boyle would be an absolute nightmare to work with. With his constant rambling about his odd family and disgusting culinary experiments, it's no surprise that Diaz' patience for his antics is so thin. However, when Charles arrives at work to tell everyone about the death of his dog, she is unnecessarily heartless and shows no sympathy at all.

Instead of showing a glimpse of humanity (which we all know she can do) she brushes off Boyle's depression and shows little compassion for this truly heartbreaking occurence.