Believe it or not, weebs make very helpful household caretakers. All they need for sustenance is a constant stream of anime (sites such as kissanime provide this for free), and the occasional memorabilia from a favorite show provides a nice bonus and incentive for hard work. They never need to leave the house, and if for some reason they demand food, ramen is ALWAYS acceptable. Just let them sleep on the futon, and they are set. Incredibly cheap, very effective. Typically I'd say torch it, but hey, if it showed up on your porch, take advantage of this golden opportunity.