It’s probably been 15-20 years since I’ve done it but I used to do wrestling sessions once in awhile where the Domme would put me out. The thing I remember is the Domme would bring me back by slapping my face and I’d wake up in a weird panic for a second. Disoriented with an empty scared feeling just for a second until I realised where I was. I knew it was risky but I enjoyed the submissive helpless feeling. I’m old now and don’t think I suffered any negative effects. I don’t think I would engage in this activity now at my age and I am fairly sure no Domme/ wrestler would take a chance on putting someone my age out either. One more thing I was put out by a number of Dommes. They all were trained and experienced in this activity and we never discussed it before they did it.