Following the herd can be a dangerous game on Wall Street. It could be time to think outside the box.For most people, it's easier to follow a crowd than to go against what everyone else is doing. That's why some stocks tend to trade in one direction (usually up) for an extended time, depending on how enthused the broader investing community feels at any given time. For Costco Wholesale (COST 1.00%), this follow-the-crowd mentality has worked out well for several years now. Crowd enthusiasm has helped the st ...