External
The uniting principles in these cases appear to be:
- The whole period of temporary residence away, if required for the purposes of employment, is capable of being 'an overall period of employment' dur — ing which 24 hour coverage may apply, at least in principle.
- Nevertheless, the coverage does not apply to all situations and an employee is capable of being 'on a frolic of his own' if pursuing recreational interests out of the accommodation provided by the employer or outside of the geographical boundaries or behavioural parameters set by the employer.