I've been ko'd with chloro and it's a blast. You do have to use it in moderation. My buddy put a straitjacket on me and put a paper dust mask over my face. Then he dripped chloro onto the mask with an eye dropper. Of course I said "I'm not gonna pass out!" but soon I was spinning and then giggling and then suddenly he was on the other side of the room. "Hey!" I said. "How'd you get over there?" He told me I passed out. I didn't believe him. Then he said, "Oh, and by the way, have you noticed your ankles are tied together now?"
Being ko'd and tied up, and waking up helpless, is a huge fantasy for me.