Person A: "No Scotsman puts sugar on his porridge." Person B: "But my uncle Angus is a Scotsman and he puts sugar on his porridge." Person A: "Ah yes, but no

Person A: "No Scotsman puts sugar on his porridge." Person B: "But my uncle Angus is a Scotsman and he puts sugar on his porridge." Person A: "Ah yes, but no true Scotsman puts sugar on his porridge." https://en.wikipedia.org/wiki/No_true_Scotsman https://en.wikipedia.org/wiki/No_true_Scotsman