So I ran over a garbage can!

So the other day, I pulled out of my drive way (if you can call it that) only to hear a scrapping noise........... I stopped the car, got out, and noticed I had ran over my garbage can!!! Yes, I had looked in the mirrors, yes I had seen nothing, and no I hadn't placed the garbage cans there. So who did? Hmmmmm..... I have no enemies here yet that I know of.....?!?!?!??!