CrisPDuk

Yep, the only things we've discovered so far (in over three years) that our dog won't touch are button mushrooms

Chip

Mine Nan was too at 93, there was a fine mesh on the front of it to stop the flies getting in.

Slugmeister

I got some strawberries yesterday and knew there was Cornish clotted cream in the fridge, bah one day past sell by date and unopened. Took off lid and spotted mould in corner of top of clotted cream! Maybe the sell by date is to protect the manufacturer from litigation, not your health!
And no, not like the 10 days past sell by date milk users it was binned!