I have dominant friend with who try with me strangling, bagging but also drowning when we are together, I most like strangling as you have feeling like you slowly fades out and its very exciting. But most intensive I still found bagging, even I have also biggest fear from it, I remeber first time when we met he tied me naked tighly to chair, fixed my body completly to it and after he gave me opaque plastic bag over my head. I didnt know him and I didnt know what to expect from him, but at some point I was running out of air and I started struggle and scream really widly. I was scared, was begging him and screaming to take it out, but it was still on my head, I didnt saw over this bag what he do and if he even care about, but I was completly fulfiled with fear for my life. In last moment when I had feeling like he is going end it, he took it out from my head, he maybe even didnt had on plan to take it so far, but we didnt know each other well so he didnt had perfect idea when he can idealy take it out from my head. But still was one of my most intensive moments in my life, even it was scary, or maybe just because it was so scary.