OK, don't laugh at me for this....
I'm sure ds can 'see' things I can't. I used to call him 'spooky baby' when he was younger because he would stare into the corner of my bedroom and laugh manically as if he was laughing at something, or babble on as if talking to someone. He hasn't done it for ages, so I assumed it was just one of those baby things, but this morning we were downstairs in the breakfast room which is quite an old room with lots of wood panelling and a big fireplace. He suddenly looked up from what he was doing and stared straight at the fireplace, pointing, laughing like a maniac and saying 'BAH! BAH! BAH!' very loudly which is his way of saying 'Look at that!' Needless to say there was absolutely nothing there to look at.
So am I mad or...do I have a psychic baby?