Maybe the Costcos in metro-New York are different, but I have never seen samples “sitting out” around here... it is hard to even get a sample; the workers barely have time to set up a tray before it all gets snatched up as if the snatchers had never eaten before. Same is true for any other stores with samples.
Ive been to Costco's in NY...and all over this country. Lol. I like how different the selection can be.
That said, you are still grabbing food that other people reach their hands over in way (even if they don't touch your particular mini bowl or whatever they use). I never do the food samples anywhere. Even seeing people hovering near the worker and putting their nostril air over the food just turned me off. At least most buffets have that glass that blocks nostril air...sorta. Lol.
I know workers in restaurants do the same, but I am able to put that out of mind because I don't see it. Lol. I used to get togo at Texas Roadhouse, but I hated they had a policy of having their people open your food to show you everything.. I used to tell them, nicely, I will check it or not check it at all. If anyone nostril air and semi clean hands will be checking my food, its mine.
Im pretty sure I am well on my way to drastically reducing my eating out. Lol. Its in a battle with my laziness right now.