I'd very much like to do this:
-Dress up as something graphically disturbing
-Sit in the corner of a random person's lawn, moan and cry quietly
-Get a friend to knock loudly on the same random person's door. Friend proceeds to run away quickly
-Random person opens door holding candy expecting trick or treaters, sees dying kid crying and bleeding on the corner of their lawn
-Moan and cry louder, show some form of pain
-Die