If you were to design a Venn diagram with circles depicting people with an interest in drugs and people with an interest in Venn diagrams, its...
If you were to design a Venn diagram with circles depicting people with an interest in drugs and people with an interest in Venn diagrams, its sweet spot would represent a group of people who would be quite interested in David McCandless's Venn Diagram about drugs and the overlapping categories into which they fall. Full size here.