Dark Humour

   ^                                                                  *
   |\                                                                /
   | \                                                              /  can use the
   |  \                                                            /   force
 D |  Darker than Vader                                           /
 A |                                                             /
 R |                                                            /
 K |                                                           /
   |                                                          /
 H |                                                         /
 U |                                                 _______/
 M |                                                /         Joined the
 O |                                       ________/          dark side
 U |                                      /
 R |                                     /
   |                ____x               /   linear growth
   |               /     \             /
   |          ____/       \       +___/
   |      ___/             \______+
   |                               \
   |    very light                  \
   |   /                             \
   |  /                           weird fluctuation
   | /                            observed
   |
   +------------------------------------------------------------------------------->
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                          Number of failed relationships -------->