Ants. That was what I scrawled as a mental note before sleeping last night. Most of the fiction I have read in the past does not have a place for ants--or for human behavior triggered by ants. Films like Stranger than Fiction and Erin Brokovich have invested in human behavior, in anthropology; rarely is this topic fleshed out in fiction, or if they do, it would sound completely unnatural--staged, even. A scene where a character shakes off ants from a piece of leftover biscuit is a good finger exercise. (It reminds me of Calvino's The Argentine Ant, which is unbelievably thorough in transforming action and behavior to paper.)