Why on earth would anyone care? If they don't think you will do something bad, then they won't even ask any questions. If they do think you might do something bad, then all they need to do is satisfy themselves that you won't.
Lots of people have meetings in foreign countries and do day trips. I've done that several times a year for the last 30 years. For many flights, I would suspect that more than half the plane is doing exactly that.