First lady-to-be was snubbed for award at summer camp by Lake Michigan . Said she was in her 'cursing phase ' during episode in 1974 . Comment: Tidbit from Mrs. Obama 's past was revealed in upcoming biography .
First lady-to-be was snubbed for award at summer camp by Lake Michigan . Said she was in her 'cursing phase ' during episode in 1974 . Changed her ways when camp bosses told her swearing lost her the prize . Tidbit from Mrs. Obama 's past was revealed in upcoming biography .