The fourth and final video discusses "what pet stores don't want you to know." The video comes from the Wall Street Journal, or WSJ, and shows an interview of Kelli Grant, who is the consumer fairs reporter of WSJ's Lunch Break. She is currently the MarketWatch senior consumer reporter, and her material is commonly featured in the Wall Street Journal. This video discusses five of her ten things that "pet stores don't want you to know."
The video is on the Wall Street Journal's site.