Examples include fruit and vegetables that are smaller or larger than sizes required by supermarkets, edible offal, and a species of Dover sole with all the qualities of sole but small size.
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The manifesto pamphlet "Why Freegan" (written by former Against Me! drummer Warren Oakes in 1999) defines freeganism as "an anti-consumeristic ethic about eating" and goes on to describe practices including dumpster diving, plate scraping, wild foraging, gardening, theft, employee scams, and barter as alternatives to paying for food.