I totally get the concern regarding alcohol and for 95% of people, alcohol + BDSM = bad. I have an unusual reaction to drinking, however, in that I am completely aware of what I'm doing and able to consent or refuse. I am just a lot more relaxed, horny, and uninhibited, which is a good thing for me. I always have the best sex when I'm drunk! We also make sure at least one person involved is sober so we can ensure we don't get overly rough.