lefthanded Items

Received this coffee mug as gift, left handed I was told.
Oh boy! the wheels started to grind wondering what
the difference was ? . I ask the person, the reply was
the inscription was nice and you are left handed.
The next day did some searching an found this site
http://www.anythingleft-handed.co.uk/
which also feature a picture of the cup but that was not
what I was looking for. What made it a left handed cup?
As it turns out the picture/writing is to you when it is
held in the left hand.

            _..------''''''''------.._
          .''`------..........------`''.
          |                            |
   _.-----'.                           |
  /  .--._  |                          |
 /  /     '.'                          |
|  |       | _________________________ |
|  |       |===========================|
|  |       | "if the right side of     |
|  |       |  the brain controls the   |
|  |       |  left side of the body....|
|   \      |  then only left handed    |
 \   \     |  people are in their      |
  `.  `-../'. right minds."            |
    \       | __________________SOUTH__|
     `-.....'====================PAW===|
           |                           |
           |                           |
           |                           |
     LGB    \                         /
             `---._______________.---'

Never having given much thought about being left handed as 
accept why did they build this way. Desk, doors, equipment,
tools an so much more all are backwards. Here is another 
example of a left handed device.

Original from dp switch to a left handed keyboard
.--------------------------------------------------------------------.
|   <> <> <>   [P|S|P] [E] [F1|F2|F3|F4] [F5|F6|F7|F8] [F9|10|11|12] |
|                                                                    |
| [*][/][N][-] [I|H|U] [`][1][2][3][4][5][6][7][8][9][0][-][=][<-BS] |
| [9][8][7]|+| [D|E|D] [<->][Q][W][E][R][T][Y][U][I][O][P][{][}][_\] |
| [4][5][6]|_|         [CapL][A][S][D][F][G][H][J][K][L][;]['][Entr] |
| [1][2][3]|E|   [^]   [shift][Z][X][C][V][B][N][M][<][>][/][^shift] |
| [0   ][.]|_| [<|v|>] [ct] [al][________________________][al]  [ct] |
'--------------------------------------------------------------------'

lgbeard