I'm new here, so I'm not sure if this is the right section...anyway, the wire of the charger for my Mac got damaged quite a bit (probably by a mouse). The question is, is it safe to use electrical tape on it? The rubbery coating has gotten destroyed, and the insulation inside is opened enough so that I can see the wire underneath. I'm on mobile for now, so please excuse the crummy pic. (My warrenty is long gone, by the way, and I'm dead broke).