McDonald's and Krispy Kreme are calling it quits. The two big names in fast food and sweets teamed up last year, but it didn't work out like they hoped. Krispy Kreme donuts were sold at over 2, 400 McDonald's spots, but the numbers weren't adding up for both sides. McDonald's says they were selling the donuts, but Krispy Kreme wasn't making enough money. The plan wa...