I regret to inform you that you are human. Don't be so hard on yourself. I'm also guessing that you are also under some type of stress or stresses that are not connected to the call.
In a very odd occurrence, this actually happened to me while I was writing my response. I've been trying to get on-line through my companies secure internet connection most of tonight and have been unable to do so. I've been on hold for quite a while and they finally answered so I stopped my response. My earlier call about the problem had been escalated by the 24-hour IT help to another group. I was told they would get back to me shortly. They did not so I called the help desk again and asked if anyone was working in that group tonight. I was told no, they would not be back until Monday. So here it is, 10:00 PM on a Friday and I'm trying to work, getting nowhere and getting bad information from one group and having to go into work because some other group isn't even there. I'm on call, why can't somone else join me in this joyous state? I wanted to bite the head off the person who I was talking with; a person who actually gave me the correct information.
I started to, paused, apologized, paused and thanked him. Now, I'm off to work where I will get my work done and where I will make sure that the right group of people get notified about the problems: 1. Train the staff correctly because had I known that there was no one in there I would have done it already and 2. This company runs 24-hours a day, seven days a week. If it isn't warranted that someone be available 24/7 on site, at least make someone on call – as I am on call. I will also send an email the up the chain emphasizing the problems I faced tonight and what these problems have now caused. Some of us NEED 24-hour access.
Gotta go. Just remember, deal with the stressor as much as possible. And if in a bad situation, pause, breath and then go forward.