1. Laurier passes "reciprocity", ie free trade, and goes to the country in 1912.
2. Conscription causes the King cabinet to disintegrate in 1942. A conscriptionist Liberal prime minister takes his place.
3. Mackenzie King passes reciprocity in 1946.
4. Louis St-Laurent forms a minority coalition with the CCF iin 1957 despite polling fewer seats than the PCs.
5. Diefenbaker is defeated outright in 1962 or 1963, the Liberals win a majority government.
6. Trudeau loses to Robert Winters at the 1968 leadership convention.
7. Stanfield doesn't withdraw his successful February 1968 non-confidence motion, a snap election is called in the midst of a Liberal leadership race.
8. Stanfield wins a minority government in 1972.
9. Clark survives in 1979.
10. Jean Charest is elected PC leader in 1993.
11. Stephen Harper wins the 2004 election with a minority government.
12. Stephen Harper wins a majority in 2008.