YUCK! A woman at the discount food store that hands out samples, told me that a woman, right in front of her opened a jar of something, peeled back the top, stuck her finger in and tasted it. Then she tasted it a SECOND time....and put the jar back on the shelf! I now open ALL jars to make sure it's sealed!
Also -- I once bought a package of Kotex. I took it off the shelf and tossed it in the basket. When I got up to the counter, I discovered it had been opened and one pad was missing!!!!!!!