I never have. But there have been many times I've been tempted. How long should you wait until the server comes back. The reason I asked is we were just at the Golden Nugget (in Biloxi, not Las Vegas) and my husband and I ordered two cocktails. We finished playing at the machines we were at and wanted to move to others. So we could either feed the machine or sit there, wanting to play in another area. After about 45 minutes we saw another waitress and asked if she knew where our server was and she said she was taking over for her because her shift was over and she left! Obviously, I sat there worrying about stiffing her and she didn't care at all. Have you ever just gotten sick of waiting and left?