You can learn a lot about someone through their pets. President Andrew Johnson revealed his sensitivity when he discovered a family of mice in his bedroom. Instead of setting traps to get rid of them, Johnson left them flour and water each night. President Woodrow Wilson, however, was a practical man. He bought a flock of sheep and had them graze the White House lawn. Not only did it save them from having to mow the grass, but he sold the wool from the sheep to raise money for the Red Cross during World War I. John Quincy Adams’ wife, Louisa Adams, revealed her practical nature as well when she raised silkworms in the mulberry trees at the White House and spun their silk. Adams might have been his serious wife's polar opposite. A trickster, he supposedly enjoyed scaring guests with his pet alligator, which lived in the East Room bathtub. General Marquis de Lafayette had brought the alligator to the White House as a gift. Some, however, claim that this alligator story is a myth, and, unfortunately, it can't be substantiated with evidence.