desperate try to reverse direction (by ejm):
 
                                      +---+
                                      |\   \
  +-----------------------------+     | +---+
   \                      +-----------+ |   |
    \                      \            |   |
     \                 |/   +-----------+   |
      \                (c_      |   \ | |   |
       \                \       |    \| |   |
        \                       |     | |   |
         \                      |     + |   |
          \                     |      \| DM|
           \--------------------+       +---+
            \                    \        \
             \                    \        \
              +-----------------------------+