"You have to stand everyday three or four hours for visitors. Nine-tenths of them want something they ought not to have. If you keep dead-still they will run down in three or four minutes. If you even cough or smile they will start up all over again."
Advice to President-elect Herbert Hoober in 1929; The Memoirs of Herbert Hoover: The Cabinet and the Presidency, 1920-1933, 1952
Can you imagine how President Obama is faring?