Do you know why Haitians do not keep brooms inside a house?

As far as I know, brooms are kept behind a door and usually hanged upside down at night.  My aunt Jeanne was superstitious and I think she believed that the broom would get a mind of its own at night and start sweeping.  But she was from Arcahaie.  I do not know if it was the same for other regions.  In Haiti, and I'm sure, as in other countries there are so many superstitious beliefs about brooms: you can't walk across it, you can't sweep someone's feet, there are times where you shouldn't use an old broom, you can use your broom and a white sheet over your well to "see" supernatural things, etc...  So it's no wonder some people might think that it's not just a "simple" piece of house equipment.
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