Picked up a Chef's Salad from the deli area yesterday (Feb 19). The date on the salad was Best By Feb 20. Once I got home, I ate half and threw the rest away after noticing a strange taste in some of the lettuce. About 6 hours later, I had extreme diarrhea. The next morning my stomach was cramping and again, had diarrhea. I have never eaten one of these salads before and now I know better.