@golf07 - I also remember that recall. I was scrambling to find my infant motrin recall 2010 lot numbers when that was announced. Thankfully, my lot number was not a part of that recall, but it still makes you wonder sometimes.
Lot numbers also remind me of yarn! I love to crochet and when I am working on a project I always try to buy enough skeins of yarn that are the same lot number so the color matches. There have been a few projects when I had to purchase more yarn and the lot number was different. It really does make a difference in the color of your finished product if you have to use different lot numbers.