People
Ford and Arthur decided just to relax and be harrowed.
— Douglas Adams · Life, the Universe and Everything

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Ford and Arthur give up resisting whatever ordeal is coming their way. Instead of fighting it, they choose to sit back and let themselves be thoroughly distressed. The deadpan phrasing turns surrender into something almost restful, as if being harrowed were just another activity to schedule.
Context reviewed