[immewaycypef]

So does this mean that McDonalds is going to do away with Ronald, the Hamburgler, and the other kid oriented characters in its ads?

I have an idea. Lets commisson a larger study, encompassing every kid entering Kindergarden. After doing a food preferrence study similar to the one outlined in the OP, allow the kiddies to have McDonalds goodies, but flavored with bitter grapefruit extract. Wait a few days and repeat the food preferrence study again. Repeat the cycle until preferrence for McDonalds drops to negative numbers. Repeat the study yearly until the problem vanishes.