I always avoid using cups and other “re-usable” items at hotels for good reason.
Check out this video.
Always check out your towels as well and don’t be afraid to ask for new ones if you are the least bit suspicious.
...practical help for the road warrior...
oh, frightening. I have finally been able to get my husband to remove the bedspread right when we arrive, looks like I now need to train him to not use the glassware. Ack, this might give me the heebie jeebies when I go into my next hotel room…..