well, my friend has been waiting to do this for a while (waiting for me to actually catch the little bugger) he has a massive collection of mice and rats, and is always trying to get new breeds, he said the exact same thing as you, "i dont know if it will calm down enough" but he is quarentining the wild mouse, and just trying it with some of the mice he has been breeding, it might be a horribly bad experiment, but it might be successful, im curious anywyas, ill let you know how he makes out