I can do the 18th, but wouldn't be staying late as I have another forum meet already organised for that day. And I have a friends' birthday the week before which would be even worse as I have further to travel to get there.
It all depends on when the baby decides to make an appearance really. We have a due date if the 15th so I don't think I will be allowed run off and drink in London! But it might come early.
Only time will tell.
I have long legs and lots of family that want to be a part of the special time.
That still might not work though.