The Darwin Awards: Survival of the Fittest, by Wendy Northcutt (small HC, 2003, $2.50)
"A new volume commemorating individuals who improve our gene pool... by removing themselves from it."
This is the third in a set of 3. I read the first one and laughed guiltily the whole way through. I laughed because it was so funny, and felt guilty because I am a compassionate person, and laughing at these fools showed a total lack of compassion. Oh, well. No one is perfect.
Look for this book in the comedy section.