Hmm, could you set a smaller goal on the Wii Fit to stop it from harassing you? My last goal was to gain a few pounds within a month or two (I met it yesterday, woo! Let's see if I can keep that weight though. :P), and while it occasionally told me what my ideal weight would be according to BMI, I don't think it scolded me much (or at all, depending on what you mean by scolding) whenever my weight fluctuated a bit in the other direction. Of course, I'm not sure if the Wii Fit has a different attitude towards the players aiming for weight loss.