Should a degree in an unrelated field be included in CV? So, in addition to my PhD and bachelors degrees I have another advanced degree that is ultimately irrelevant (and entirely unrelated) to my research efforts and current academic discipline. Should I include this on my CV under education or not? Will it make me look less focused or simply more educated? Is it standard practice to include everything, regardless of relevance?

My understanding of the CV is that it should be specific to relevant research experience and pursuits, not necessarily complete.

Edit:

This post received WAYYYY more attention than I anticipated. Some background. I completed bachelor's degrees in physics and mathematics. I then went and completed a Juris Doctor, but, found myself a bit unchallenged working with softer logic and went back to Physics. In Physics, I've mostly done mathematical physics which borders on pure mathematics and computer science. My main concern was seeming flaky and unfocused.
While there are some circumstances in which is it appropriate to use a "shortened" C.V. that does not include everything that you have done, I have never heard of a circumstance under which it is appropriate to omit a degree.  An irrelevant degree will not hurt how your C.V. is perceived, and if it is later discovered that you omitted a degree from your C.V., it may be considered suspicious or dishonest.  Furthermore, it may under some circumstances be considered a plus---you never know what kind of interesting cross-disciplinary connections somebody reading your C.V. might make in their head. I would thus advise you to include all of your degrees, even if some seem irrelevant to you.