We tried to test the original hypothesis, that Toxo positives give up earlier than Toxo negatives in a struggle, not only by using questionnaires given to people, but also by experimenting on animal models. However, when planning the latter, we committed a basic error. We planned to put together two male mice, one Toxo positive and the other Toxo negative, and observe which one of them first surrendered the fight. When two male mice, thus far kept separate, are put in the same cage, they begin fighting almost immediately. >> Read more