Right, I get blurting. I do it all the time and I can tell when its me that did the oops. It's usually happens when I'm surprised or experiencing an extreme emotions like anger and I'm just gushing at the mouth (ouch). When we are mad, we get to be quite the blurting hydrant.

There are also times that I'll experience moments of dissociation (daze/fog) and an other would say or blurt out something solo or in conjunction (usually sarcasm or a slam, depending on the general mood) of the sentiment being expressed as an add along. Usually upon coming out of the brief fog, the spoken words are quickly fading away echoing in a dreamy kind of way, causing me to pause and question myself if it really happened. I've asked other people "did I just say that?"

Usually, the big indicator that it was an other is the feel and attitude that powered it....Luis the daze aspect is a dead getaway.