If there is one thing you should learn about hobbits, Aragorn, is that we do not think quite like the minds of men. A sacrifice to men may be nothing more than spending a meal in the company of friends to a hobbit, depending on the situation.
What adventures happen after setting foot outside your front door will come to pass no matter what circumstances. If such events happened and Frodo happened to be in the thick of it all, then he may be very brave indeed, or fortunate enough to be a better burglar than I. Or, perhaps, he was not a burglar at all.