As a young person, sometimes you can be bullied by people. Your peers, your seniors, sometimes even your juniors. And if you are ever bullied in your professional life, you will have the opportunity to exert similar types of aggression on your someone below you in the hierarchy (the proverbial food chain) on many occasions without the slightest hint of recollection of your own experience as the prey dawning on you.
No matter how sensitive or empathetic you are capable of being as a child or an adult, the opportunity can and will present itself at some point and amnesia can (and more likely will) befall you. How many times you choose to take advantage of that opportunity is up to you.