Sex parties and darkrooms

I feel like it's quite common that men might start playing with other men who are basically passed out or barely conscious or at least not in a position to be able to consent or not to sexual touch.

I remember an incident in a darkroom at a gay party where one guy was playing with another guy and the guy was obviously very high and not really conscious and the guy suggested I join in and I felt uncomfortable and asked if he'd asked the guy if it was okay and he said no. I asked the guy who was being fondled if he minded this other guy playing with him and he said no.

I feel like a lot of men at sex parties only consider consent insofar as they'll only take a firm no as an answer and otherwise assume that everything's okay. They'll touch you first and only stop if you push them away as opposed to asking first. I've been victim to this on numerous occasions but, to be honest, it's the norm as far as darkrooms go.