This one time my dad was talking about Karl Marx and said he was “born in Russia”, and I corrected him that he was born in Germany. And then he got argumentative and started spouting out other facts about “Karl Marx”, like that he overthrew the Czar and lead the Red Army…

Suddenly I realized… “Dad, you’re thinking of Vladimir Lenin, not Marx.”

My dad realized I was correct and replied: “Well of course you would know that.”