I gave up on any pretense of "delicate flower" around the same time I kicked a boy's ass for saying I should "go play with the Barbies, freak" in elementary school. Come to the Dark Side, we have bacon.
On another note, bear in mind that retraining oneself takes effort, time, and an all out WAR. You aren't just retraining the brain- if only it were that easy. You're sending the body through an equivalent of a time warp boot camp. After years of eating like crap, you can't possibly expect the animal panda body to suddenly make the connection the panda brain did. It'll take some beleaguring, some browbreating, some infuriated rage fests, and a LOT of work to get the body to snap back to what it should want to eat. Until then, it'll protest the only way it knows how: numbers. It won't win, if you don't let it.