The Ghost Dog of Titsey Hill...

I was recently driving up Titsey Road, from Limpsfield to Woldingham. It's a winding road that climbs sharply into woodlands, shrouded in low cloud. It's a spooky place even during daylight hours, but at night it's the type of road that you don't want to breakdown on.

'Don't panic if you suddenly see a dog on the road', says my travelling companion.
'What?', I asked. Suddenly touching the breaks lightly - I didn't see anything.
'I've been told that the road is haunted by a ghost dog', she said soberly.
'A ghost dog? - What does it look like? What breed is it?'
'It's a ghost - you can't tell what it looks like', she continues in all seriousness.
'Does it bark?'
'No' she responds, sounding a little annoyed.
'Well how do you know it's a dog? Has it left a ghostly turd on the side of the road?'
'Don't be stupid', she huffs.

There was a pause. 'Oh sorry, I didn't know we were having a sensible conversation'.