What is the meaning of the man in the rabbit costume?

Sometimes in horror or thriller movies, there is a man dressed in a rabbit costume in abstract scenes... What does this rabbit represent and why the silly, furry costume? (e.g. There's one in ';Cabin Fever';.)What is the meaning of the man in the rabbit costume?
Perhaps it's a way of looking at alice in wonderland. Like it appears when the people are out of their element or in a new world like alice was. nOr maybe that their running out of time. Like in Cabine Fever maybe it was a way of saying it wont be long until the madness over takes them all. Or that insanity was their new world.What is the meaning of the man in the rabbit costume?
Dear Rabbit,





Here is the story of the EPT test





The rabbit test was an early pregnancy test developed in 1927 by Bernhard Zondek and Selmar Aschheim. The original test actually used mice. The test consisted of injecting the tested woman's urine into a female rabbit, then examining the rabbit's ovaries a few days later, which would change in response to a hormone only secreted by pregnant women. The hormone, human chorionic gonadotropin (hCG), is produced during pregnancy and indicates the presence of a fertilized egg; it can be found in a pregnant woman's urine and blood. The rabbit test became a widely used bioassay (animal-based test) to test for pregnancy. The term ';rabbit test'; was first recorded in 1949 but became a common phrase in the English language. Xenopus frogs were also used in a similar ';frog test';.





Modern pregnancy tests still operate on the basis of testing for the presence of the hormone hCG. Due to medical advances, use of a live animal is no longer required.





It is a common misconception that the injected rabbit would die only if the woman was pregnant. This led to the phrase ';the rabbit died'; being used as a euphemism for a positive pregnancy test. In fact, all rabbits used for the test died, because they had to be surgically opened in order to examine the ovaries. While it was possible to do this without killing the rabbit, it was generally deemed not worth the trouble and expense.





The rabbit's life was above your God like arrogance...
I know a few people who associate rabbits with fear, it comes from seeing Watership Down (damn that was a messed up rabbit) and I have met a few people who just find their teeth really scary lol. Maybe that has something to do with the whole movie rabbit thing, not sure.
I have not watched films like that, but i would assume that bunnies are soft and furry, but they may be hiding something more sinister
alice in wonderland...