Plumbing New Depths of Depravity

I was looking for my personal name cards, which I haven't seen in ages, so I decided to look in my winter coat in case they were still in one of the pockets. I reach in and feel something soft, sticky and squidgy in there, like bluetack. I pull it out, wondering what it could possibly be and find that it's a dried plum, a thoroughly mouldy dried plum. Where did it come from? Well, I have some recollection of being given a dried plum by someone and not wanting to eat it straight away so I put it in my pocket... but when? I haven't worn that coat for over a month, so that little dried plum must have been moulding in there for all that time. Yeesh.