Phantom drip

I experienced a phantom drip today for the first time in ages, shortly after taking this photo.

This is the sensation that a cold drip of water has just landed on your skin. Your usual instinct is to look up and then to look down at where the "drip" has landed, and for me it usually happens indoors! But there is nothing there.. Spooky!

So if this has happened to you before and you didn't know there was a name for it, you know now!