It's my fault. Sorry to you all. I have that effect on threads. Previously they have just dropped off the menu 24 hours after I make my post, but now it seems they are getting a bit of hurry-up.

I have a similar effect on checkout queues. As soon as I stand in line the cash register goes bung, or someone presents an item with a faulty barcode. I live in a constant state of impending breakdown. Get used to it. I'm here to stay.

But as I said, sorry.