ratluver: chicken left on the bone will only make them like it more. there is no harm from it so long as everything has been cooked of course. but these are leftovers so i would assume you would cook you chicken before you eat it. in fact a little bit of meat is good for your rat. but like everything else, keep to moderation. too much protein can cause skin irritation. but simply lowering the protein levels and giving it some time clears protein itches up just fine.
Star: i'm not sure if your response was meant to be sarcastic (if this is the case please ease up a little, it was a legit question) or if you were really asking those questions. in case you were asking them then i'll answer. as to where ratluver could have heard this from, well just about anywhere. there are a lot of old wives tales and just out and out misinformation about rat care just about everywhere. this is why it is always good to question what information is given to you be it from a website, forum or even a vet. as for what is wrong with leftover chicken, that would be answered above. finally, baby foods should be fine so long as the ingredients are not on the forbidden foods list. baby foods are in fact recommended for ailing rats or underweight rats too boost their system and give them extra nutrients. boost is also recommended for this reason.