A story that in some way, shape or form references the number 20,000, whether it be maybe the number of times Spuffy has sex, number of donuts Xander has purchased for Scooby meetings, number of people Anya killed as a vengeance demon, and so on. It could be serious or silly, long or short, as long as it makes mention of the number 20,000 in some meaningful capacity to celebrate EF's milestone number of members.