Went to the Grand Lux Cafe around 3AM after a great night of partying in Vegas. Walked in and noticed greasy and slippery floors. Out of curiosity, noted this to the staff and they acknowledged that it was a problem. Dinner - nothing to write home about. It was OK. Not very flavorful - bland. As were leaving, we made a friendly and light-hearted comment to a gentleman, who appeared to be the manager, regarding the slippery and greasy floors. The irate and condescending response was not something I was expecting. Apparently the grease makes it way from the kitchen on the serves shoes. I have NEVER seen this before. If you go there, out of desperation for food late night, please don't ask any questions regarding the place - or risk the wrath of some irate manager.