I remember years and years back, when I was a 2nd degree blue belt (must've been like 10+ years back), my instructor was demoing the rear naked choke for a class of about 20-25 people. He used me as the demo partner, and was explaining the details of the choke. For some dumbass reason, I got caught up listening to his details and forgot to tap when the choke was being applied...... However at the time I didn't quite realize it.
I still heard his voice as he was demoing it, and when he was talking all I remember is that I bit my own tongue. At that point I started hearing him say my name repeatedly and ask if I was OK. I told him "of course I'm fine, I just accidentally bit my tongue"... He tells me " bro you went out", I was shocked and was like "nooo,are you sure?".... Sure as hell, I look up and see 20-25 guys with that shocked look on their face watching what happened..... To this day, my coach and I still laugh about it LOL