If you're emotional at work, will that kill your career?

[youtube http://www.youtube.com/watch?v=HexpxoHK-A8&w=600&h=315] This is a pretty nuanced issue, and I'm not sure I'm going to give it the most comprehensive treatment available (simply because there are huge gaps in own knowledge), so I'll try to keep this (comparatively) brief as a potential discussion-starter. I feel like a numbered list may be the w…