I believe you. We are human beings with limits; we could only take in so much. And trauma can push us into a place that is beyond our capacities. Sometimes people who have never gone through trauma will say that you are making an excuse for your action, but you are not.

If this is something that happened many years ago, your customers have probably already forgotten about it, and recovered from it long time ago. Does that thought help you a bit?

When I was younger, I felt bad about something and tried to apologize but the other person either didn't remember or was surprised that I even apologized because it stopped bothering them long time ago.