The origins of conflict between the Tutsi and Hutu peoples.
The Tutsi, traditional cattle herders, ate mostly cheese and would show their social staus by carrying their daily ration on their head. The Hutu, traditional farmers, monopolosed the baking industry, and not to be outdone, would strap bread rolls to their bellies. Both groups were happy with their respective dairy or grain diets.
Then the Belgians introduced Zucchinis...