To save you all guessing. I have had to.
A work commitment means that I have been forced to. It's something that came up last week whilst I was away; I would be foolish to ignore it. As soon as I knew it was definite (yesterday) I let Greg know.
As I organise lots of jaunts I know how these things happen. I had one on the morning of departure of my last Wander to Annecy. The world does not stop spinning, that's for sure. I have another on my next Wander, too. Again, the sun is still coming up in the east and descending in the west. I very occasionally get a 'No show', these just inconvenience other punters as much as (or more than) me.
If Greg has any expenses I am happy to meet them, just as others have done for me.
Enjoy your jaunt.
Richard