Einstein said his “bad memory” briefly included his own name, suggesting he’d had to quickly switch back to his regular personality

“During the first World War, when I was thirty-five years old and traveled from Germany to Switzerland, I was stopped at the border and asked for my name. I had to hesitate before I remembered it. I have always had a bad memory” (1, p. 21).

1. Albert Einstein. The Ultimate Quotable Einstein. Princeton, Princeton University Press, 2011.