Sky-high dividend yields suggest these stocks are too hot to handle, but billionaires bought millions of shares in the first quarter. At any given time, you can find at least a handful of dividend-paying stocks that offer ultra-high yields. Unfortunately, the stock market rarely allows dividend yields to rise so high unless there are reasons to expect trouble ahead for the underlying businesses. Since 1928, the S&P 500 index has delivered a total return that works out to 9.7% annually, on average. Thousands ...