Let's face it. Doms are not invincible. We don't have all the answers to the universe and we certainly don't have impregnable armors. We are human, which means we make mistakes. We may hurt someone, although, hopefully, not by choice. And we are capable of being hurt.
We are just as susceptible to hurts as subs, because we care. Because we all care. And sometimes, it sucks being the Dom, because it is literally our job to care. Although that can be said to be the job of a sub as well. And anyone who has cared for another person knows, sometime your care is not appreciated. And that hurts. To care for someone and have that person turn against you. To trust someone and have that person betray your trust. I am not saying this is someone. This could happen to anyone and that is the point.
Before we are Dom/sub/Mistress/Master/slave/else, we are human beings. And regardless of what we call it, a D/s, Master/slave, Cougar/cub and etc, we have a relationship, which is built upon trust. In fact, trust is at play in a BDSM relationship more so than a vanilla relationship, because you are trusting or being trust by someone with your/her body, mind and in some cases, even finances.
Please remember, before these labels, we are people.
Please remember, these labels are there for us to fulfill a role. The labels can be part of us, but it is never the whole of us.
Please remember that before we put ourselves into neat little boxes with labels on top.