Some say he had a dislike of men taller than he. The only reference I know is that he had a very loud and public argument with the British Ambassador, Lord Whitworth, in 1805 at a ministerial reception. He later told Hortense that Talleyrand had previously told him something which put him in a temper and then, ". . . this great gawk of an ambassador came and put himself in front of my nose." (from Felix Markham, Napoleon)
His marriage to Marie Louise was celebrated by a large party hosted by Prince Schwarzenberg. The building the party was in caught fire and Schwarzenberg's sister-in-law burned to death. In 1812 Napoleon was one day told, incorrectly, that Schwarzenberg had been killed and his flanking Army Corps destroyed. Napoleon replied, ". . . as if to an idea that long preoccupied him. "Then it was he whom the bad omen threatened."