The World's Saddest Cookbook
The folks at Reddit dig up "the world's saddest cookbook," titled Microwave Cooking for One. Says one commenter:
When my parents were dating, and starting to get serious, my dad got this book for my mom for her birthday. In typical engineer logic he explained that, since she was living on her own at the time, it would obviously be useful. It's amazing how many times I came close to not existing.