Guest's unfinished food-do you ask?

[GLC1968]

I'm surprised no one has mentioned religious restrictions in this thread.

Shootingstar, apparently if your friend ate some of the mussels, that wasn't it. But I would accommodate a guest's religious dietary restrictions the same as I would if it were a physical allergy or sensitivity. Obviously they'd have to tell me first though.

Yes, I would accomodate religious restrictions as well, no problem. Honestly, I would accomodate any reasonable request. Key word here being 'reasonable' of course.