An excerpt from Harry Potter and the Order of the Phoenix:
** "Don't you understand how Cho's feeling at the moment?" [Hermione] asked.
"No," said Harry and Ron together.
Hermione sighed and laid down her quill.
"Well, obviously, she's feeling very sad, because of Cedric dying. Then I expect she's feeling confused because she liked Cedric and now she likes Harry, and she cant work out who she likes best. Then she will be feeling guilty, thinking its an insult to Cedric's memory to be kissing Harry at all, and she will be worrying about what everyone else might say about her if she starts going out with Harry. And she probably cant work out what her feelings towards Harry are, anyway, because he was the one who was with Cedric when Cedric died, so that's all very mixed up and painful. Oh, and she's afraid she's going to be thrown off the Ravenclaw Quidditch team because she's been flying so badly."
A slightly stunned silence greeted the end of this speech, then Ron said, "One person cant feel all that at once, they'd explode."
"Just because you've got the emotional range of a teaspoon doesn't mean we all have," said Hermione nastily, picking up her quill again. **
UPDATE : HERE is a take on emotional intelligence from an investing angle but the sources cited herein also make for a more generally useful resource on this subject.