Theory of the week

It's been happening for years. Everyone's used to it now. They're huge, but they're invisible. The beasts lumber down the streets like polar bears. Some are ravenous and eat hundreds of people. Often people notice if the animals have eaten someone in uniform. Many humans desire to be subsumed by these monsters, and make themselves deliberately appetising to do so. Some people work for years to make themselves delicious for a particular beast. Often we're congratulated on being eaten by one of these animals. We're all subsumed, eventually. The beasts are called Job Titles.