I can do it, but it takes practice. Start REALLY slow then speed up.
Also, you're not outsmarting your foot, you're attempting to get your brain to send similar but opposite signals to similar outputs, your brain is a very complex computer chip with LOTS of inputs and outputs that's all, it learns the process to use for each set of inputs and figures an output, it's been programmed through life to know that twisting your foot clockwise and drawing a 6 simultaneously is completely useless in every day life so it's optimised itself to do one or the other. You can train it to de-learn that programming over time but you might find you can't hold a cup of tea straight any more!