Engineers

                                                   
 .-'"""`-.                                         
(         )                                        
|`-.___.-'|  Pessimists see the glass half empty  
|.-'"""`-.|   Optimists see the glass half full
|         |    Engineers see the glass twice as big                                     
|`-.___.-'|          as it ought to be.                              
|         |                                        
|. ' " ` .|                   - Unknown                     
|         |                                        
 `-.___.-'       VK