What do we change when the only driver is too sleepy to continue to the ferry?
TravelAt 10:40 p.m., parked at a motorway service area, Zara says she cannot face the remaining drive to Dover. “I keep yawning. I need to sleep.”
Her two friends look at the ferry booking. They planned to drive down after a full working day and sail early in the morning. Zara volunteered to drive when everyone was excited about saving a hotel night. No one has established whether either friend is both able and insured to take over.
The [Highway Code's Rule 91](https://www.gov.uk/guidance/the-highway-code/rules-for-drivers-and-motorcyclists-89-to-102) advises against starting a journey tired and says to stop in a safe place if sleepy. They are already safely parked; pressing on to protect the timetable is not the answer.
In their contingency example, a nearby room would cost £82, and changing the ferry may add another charge they have not checked. Zara says she should pay because she broke her promise. Her friends planned the same overnight drive. How would you divide the replanning and any extra costs without treating her decision to stop as a failure?
