Your post made me laugh. Your friends are very outspoken. I have been to several drinking affairs, but no one cared what I drank.. I brought my own drink, green tea and drank it over ice. I had a blast and I don't think anyone really cared what I did or did not drink. You did good to fend off their questions. I would not have been very nice if they were to get in my business. Maybe that is why they did not ask!