i went to do a batch of cooking for the week ahead. went to the fridge, pulled out a kilo of mince i bought fresh from the butcher yesterday and when i was tipping it into the pan i broke up the "lump" and found that some of the mince had gone mouldy on the inside of the lump of meat iykwim.
it had started oxidising on the outside as well, which is really unusual in such a short time period (24 hours).
i just dumped the lot in the bin and will cook up something else during the week but am a bit 
does that sound like a problem at the butchers or in my fridge? and if the former, do i complain or just put it down to freak occurence?
i've been using this butchers for a good few years; it specialises in free range etc and is not cheap!