I cleaned mine out the other day and found a block of cheese, yuck! I am ashamed to say that it had to have been there for a little while as I have been using slices lately and cannot remember the last time I bought a block.

My fridge is cleaned out regularly with a quick clean out after shopping every week, I have no idea how this slipped through, I must of overlooked it as it is in tupperware that I usually keep butter blocks in for baking.