Monday hour one

I am in week two of Monday Hour One. I am managing to follow pretty well but sometimes, like this morning, something comes up and disrupts my schedule- eating in the 2 hour focus times, which are then not easy to reschedule in the afternoon.
Even with the overflow, which I have at the end of the day, the day is not the same anymore. How do you deal with disruption?
Do you carry on as planned and reschedule the missed hour? Or do you push it all?
Many thanks