Such a fun question, I figured it was blog-worthy. Below is my un-edited response. Hopefully, he will use a line or two that works for his purposes. More likely, I (ironically) scared him away for good. Perhaps it will add something to your Halloween experience, or scare you away too. Either way...Nearly every theory of personality can provide an answer to this question, "Why do we like to be scared?" In my opinion each "theory" contributes a piece of the overall puzzle, which when put together can shed some light on the simple question about the paradoxical joy of Halloween, and also some of the suprisingly coherent properties that connect each of us across scales, from biological to cultural, and across both time and space.