http://news.bbc.co.uk/1/hi/health/7291366.stm
Short men are the most likely to be jealous, scientists believe.
Spanish and Dutch researchers quizzed 549 men and women to rate how jealous they felt and to identify the qualities that made them feel the most insecure.
Men felt most nervous about attractive, rich and strong rivals, but the taller ones were the most relaxed, the New Scientist magazine reported.
That explains Juicy D.