Why would someone put dirt around your door?

Not sure how much dirt you're talking about or where you live. If you mean like red dirt for construction or filling in around the steps or something, disregard. (haha) But in the South where I live, particularly around New Orleans or something, there IS a Voodoo curse involving throwing graveyard dirt on someones door or on their porch so as to curse them or hex them. Hope it isn't that . . .