A few weeks ago, I poured milk on my cereal, and when I took my first bite, I realized that something was wrong. I went back and tasted the milk and found a distinct off-flavor and odor in the milk itself.
Examination of the sell-by date on the jug showed that there were still seven days left on the code. I decided to return the milk to the store I purchased it from — not because I wanted my money back, but to let them know there was a problem, as I am very meticulous about keeping dairy products at 40 degrees Fahrenheit or less.