ive read that macbooks get cracks on the casing. i have a black macbook from 08 and its had the crack since about 2 months after i got it, i didnt do it. it kind of gradually turned into a crack and then a peice came off, if i brought it to a macstore, would they fix it even though i dont have insurance ? I actually have 2 cracks, one that i didnt do and one that happened by accident, would they fix it if one of the 2 cracks was done accidentaly by me ?