We just returned from a cruise on a line that is supposed to be the nicest of the middle range cruises. I went to the bar to ask the bartender a question. It was late afternoon, and he was setting up the bar. I caught him pouring Gilbey's Vodka into a Grey Goose bottle in the well. I confronted him about it. He denied it at first. I asked his name and turned to leave. He followed me out into the hallway, apoligized for doing it, and said he would never do it again. He then asked me not to tell, as he would lose his job. I asked him if the cruise line asked him to do it, he said no, and please don't tell. I didn't say anything while on the cruise, but e-mailed, then called the cruise line after we returned home. I didn't tell his name, but told about the incident. They said it would take about two weeks to get back to me, because of the high volume of e-mails. Needless to say, I was very surprised, and my husband and I didn't buy many mixed drinks/martini's, but stayed with bottles of wine with dinner. I know this happens in some bars/restaurants, but I was surprised to see this on a cruise line that prides itself on being a "step above" the rest. What would you have done, or how should I have handled this?