I was going to say 'Failing memories...' but I don't really mean that.
I was looking at some notes I did for a story only a few months ago. I have a sentence about people being attacked by a pack of squealing flesh-eating pig like things. I have absolutely no memory of writing this (was it even me?). Not sure if I even want to claim them but it is strange to have no recollection whatever about it, especially when it is so recent!
Inkpot blogged about this recently - but at least she was talking about stuff she had written years ago!