I've had a cup of whipped cream on my desk and it's been sitting there for six weeks, it's turning orange, but I believe that adds to the flavor of it.I placed a ham sandwich on top of a school locker for a year, it's been sitting there for awhile now, but it's turning a dark, dusty green, so I'm pretty sure it's all going to plan now! Crazy? I was crazy once, they locked me in a room, a rubber room, a rubber room with rats, rats make me crazy.