At convenience stores, clerks always try to push me into putting a dollar in the "Juvenile Diabetes" charity thing, and I always tell them the same thing:
"My dollar can't save kids whose food pyramid foundation is corn syrup."
"Ah, those endless forests, and their horror-haunted gloom! For what eternities have I wandered through them, a timid, hunted creature, starting at the least sound, frightened of my own shadow, keyed-up, ever alert and vigilant, ready on the instant to dash away in mad flight for my life. For I was the prey of all manner of fierce life that dwelt in the forest, and it was in ecstasies of fear that I fled before the hunting monsters."
Jack london, "Before Adam"