....-=$%@@                                          @@%$=-....
...-=$%@@#                                          #@@%$=-...
..-=$%@@##                                          ##@@%$=-..
...-=$%@@#                                          #@@%$=-...
....-=$%@@                                          @@%$=-....
.....-=$%@           .--- batteries ---.            @%$=-.....
......-=$%                                          %$=-......
.......-=$ batteries  may  not  harm  a  human  or, $=-.......
........-= through inaction,  allow  a  human being =-........
.........-             to come to harm.             -.........
..........                                          ..........
.......... a battery must obey the orders given  it ..........
.......... by  human   beings  except   where  such ..........
.......... orders  conflict  with  the  first  law. ..........
..........                                          ..........
.......... a   battery   must   protect   its   own ..........
.......... existence as  long  as  such  protection ..........
.......... does  not conflict  with  the  first  or ..........
..........               second laws.               ..........
.........-                                          -.........
........-=                   ####                   =-........
.......-=$                                          $=-.......
......-=$%   these things power almost everything,  %$=-......
.....-=$%@ but  when  i  speak  about  batteries  i @%$=-.....
....-=$%@@   speak about standard household ones.   @@%$=-....
...-=$%@@#        think double a, triple a,         #@@%$=-...
..-=$%@@##    twentyfive twenty, nine volt, such    ##@@%$=-..
...-=$%@@#                 things...                #@@%$=-...
....-=$%@@                                          @@%$=-....
.....-=$%@ they  look  slick  but  are  very  dirty @%$=-.....
......-=$%                  inside.                 %$=-......
.......-=$                                          $=-.......
........-=                                          =-........
.........-                                          -.........
..........                                          ..........
..........                                          ..........