Several things come to mind here:
1. You were being pro-active in, perhaps, preventing a bad situation. KUDOS
2. Alcohol and firearms. BAD
3. You followed your training -- treat every weapon as if it was loaded. Never point a loaded weapon at anything you don't intend to shoot. Always keep the weapons pointed in a safe direction. KUDOS
4. Noun properly clearing the weapon because you were impaired by alcohol -- see number 2 above. BAD
For the most part you possibly averted a couple of tragedies because of training, however lack of adherence to training gave life to another potential tragedy. Once having lived through this I seriously doubt you'll do it again. LEARN from it, SHARE it and help others learn from it.