NTSB investigating possible nodding off of Northwest pilots

[Airbubba]

With regard, however to the language of the pilots being "on a frolic of their own", I too was interested to see it in a modern American legal document.

Thanks for the explaination enoon! Perhaps the term has a specific meaning in U.S. employment law as well.

Here's a web reference:

PLC Law Department: No vicarious liability where employee "on a frolic of his own"