Never in my life as a paying customer have I been so offended by a bartender.   My wife and I stopped by IBAR at the Rio for a quick drink then some gambling.   I had half a beer left but was gonna need another one soon, so I wanted to order us both a drink.  We sat at the bar and noticed the bartender looking at me in a strange way.  I asked how he was doing and got no response, just a stare.  He asked me if I had seen the sign at the door, which I had not.  He explained the sign said \"NO OUTSIDE DRINKS\", had I been able to read it I would know.  His condescending tone, and implying that I am not able to read is completely unacceptable.  I simply stood up and told him that I am not going to give him my hard earned money so that he could insult me and my wife.  He said he didn't care and shrugged his shoulders all while keeping his condescending attitude.  We walked ourselves not only out of the bar, but left the RIO all entirely.  \nI understand the policy of no outside drink, however the manner in which this bartender is enforcing it is unacceptable to any paying patron.  Had he approached me differently, I would have zero problem finishing my beer before going into the bar.  \nNeedless to say RIO will be boycotted during our visits to Las Vegas.  It's too bad because we always enjoyed visiting and staying there.  I hope this bartender understands that he represents the entire brand of the RIO not just the IBAR, and how his courtesies can completely make or break a customers experience.  \n\n\nSent from my iPad