Income-focused investors have to guard against the emotional risk of buying ultra-high yields that are supported by risky companies. It is very easy to get so caught up in the income stream from the dividend that you overlook the investment risk you are taking on. That's not a problem with Enterprise Products Partners (EPD -0.36%) and its huge 7.2% distribution yield. Here's four reasons why Enterprise's giant yield is for real. What does Enterprise do? As a foundation, it's important to understand that Ent ...