Down days in the market aren't fun, but they may also be great days to buy stocks. (0:21) Jim Gillies discusses: - Why his rule is to never buy stocks on a day the market is up - The types of companies he's been buying shares of lately - Takeaways from Starbucks' investor day event (16:24) Ollen Douglass, managing partner of Motley Fool Ventures, talks with Jenny Abramson, founder and managing partner of Rethink Impact, in front of a live audience about investing in private companies and what she looks for company leaders.  Stocks mentioned: SBUX Host: Chris Hill Guests: Jason Moser, Marc Rapport, Joseph Ori Engineers: Dan Boyd, Spencer Daniel