I stayed at The Venetian hotel in Las Vegas while I was at CES in January, and noticed something really gross...
The water glass in the bathroom had a layer of crud in the bottom of it. Maybe it was just hard water residue, maybe it was toothpaste film from some prior guest. Whatever it was, I wasn't going to use the glass. But I decided to take a picture of the crud for posterity, and then I set the glass back down next to the sink:
Bathroom Drinking Glass Jan 6
That, however was not the really gross part. This morning I noticed that there were two "new" glasses, upside down, in the corner. I decided to check if the new ones were any cleaner. That's when I saw this:
Bathroom Drinking Glass Jan 7
Ewwwwww! The same stain is still partially there. But only partially. And that's horrifying. Because it means that housekeeping must have "washed out" the original glass, there in the bathroom, and then put it back. And there is no scenario in which the person cleaning the bathroom also washing the glassware is a good thing.
When I checked out shortly after this, I spoke with a manager. She said that the policy is that the glassware is replaced in the rooms if it has been used. Clearly this isn't what happened. She also suggested that perhaps this was two different glasses, but if you look at the shape of the blob in the upper left corner of both photos, it is clearly the same mark:
This original blob is clearly the same stain...
... as this one that had been partially washed off the next day.