evidence: If you collect 100 black ants and 100 fire ants and put them in a glass jar nothing will happen. But if you take the jar, shake it violently and leave it on the table, the ants will start killing each other. [...] "What he was doing was spooning different kinds of bugs into the jar and making them fight. "The bug fight was so interesting that I stopped crying right away--forgot all about the old man. I can't remember what all Frank had fighting in the jar that day, but I can remember other bug fights we staged later on: one stag beetle against a hundred red ants, one centipede against three spiders, red ants against black ants. They won't fight unless you keep shaking the jar. And that's what Frank was doing, shaking, shaking, the jar."