This also reminds me of the old joke: > Q: How do your parents know exactly how to push your buttons? > A: They installed them. But the truth is evolution in

This also reminds me of the old joke: > Q: How do your parents know exactly how to push your buttons? > A: They installed them. But the truth is evolution installed the buttons in parents as well as installed instincts in the children enabling them to push those buttons whenever they need.