I've been making fruit smoothies with yougurt, ice, berries and bananas for breakfast to go in the car. Today I added sliced mango. By the time I drank it in the car about 5 minutes later, the whole thing had turned slimy and had the consistency of thin pudding. I couldn't really drink it out of the cup. It skeeved me out and I didn't drink it. What happened? Was it the mango? I don't know what else it would be since I make them every other morning without trouble.