" Inflicting physical pain is also creating social rejection in the child’s brain. Since children can’t be perfect, we see the importance of the findings indicating that while spanking often stops a behavior in a particular moment, it’s not as effective at changing behavior in the long run. Instead, children will often just get better at concealing what they’ve done. In other words, the danger is that kids will do whatever it takes to avoid the pain of physical punishment (and social rejection), which will often mean more lying and hiding—not collaboratively communicating and being open to learning. "

― Daniel J. Siegel , No-Drama Discipline: The Whole-Brain Way to Calm the Chaos and Nurture Your Child's Developing Mind