If we're discussing dark and disturbing lyrics, I think the content of "All You Need Is Love" is far more poignant. Just my 2c...
as far as having "dark and disturbing", yet "poignant" lyrics ("killer virus meets the world outside" - "ring o' rosies" - "I don't wanna die!"), sure, "all you need is love" definitely fits the bill but certainly not delivered by drummond in a nervous-breakdown-sounding style (as "go to sleep" was described by someone else earlier as possibly sounding like) and certainly not anywhere near as manic as "disaster fund collection" (which could be described as more "kurt cobain territory" than either) but if you're just talking "dark, disturbing, and poignant," don't you think "downtown" would have to be at the top of that list? "kurt cobain territory" as well! (or am I the only person that took the lyrics "did you do it clean?" to be an IV needle reference?)