Really France? Riddle me this...

How does this happen...I bought these oranges a week prior, go away for a weekend and look what I came back to...

2 oranges and one green, moldy, disgusting, remnant of an orange.  AFTER ONLY ONE WEEK?!  And the other two are still perfectly fine but there is no way in hell I will put my hand in that bag to even attempt to even eat the other two. 

This is at least the 3rd time this has happened!!!  It has also happened to my pears and clememtines.  I hate wasting good fruit but I can only eat it so fast...AND PLUS--(maybe not pears but) oranges and clementines should last longer than a week!!!!  What the heck!!!