This space is intended to be a 'pinboard' of ideas, half-baked as well as closer to 'done' writings.
A monkey is easily flummoxed by a coconut. A hole is cut into the coconut and filled with sweet food (or something shiny). The monkey slips her hand into the coconut, grasps the treat, and is trapped. She can readily unhand the treat (or shiny object), but is unwilling to let go. Letting go, for monkeys as well as humans, is harder than it sounds.