The Scotsman fallacy

the argument goes like this:

Argument: "No Scotsman puts sugar on his porridge."

Reply: "But my uncle Angus likes sugar with his porridge."

Rebuttal: "Ah yes, but no true Scotsman puts sugar on his porridge."

ah.. but anyone who eats porridge is a retard... and anyone who talks about porridge in relation to identity doesn't really know how sensual taste can be