A friend recently told me a story, where a relative had a huge garage with two bay doors, one of which was totally empty. Weather reports showed a large storm approaching, with the significant possibility of large hail. He asked the family member, "Would you mind if I backed my car into the empty bay for forty five minutes until the storm passes?", to which the relative replied flatly, "No."
This brings to mind an interesting philosophical question. Clearly the relative is in no way obligated to let someone else use his garage: after all, it's his, and he is the sole arbiter of its use. It's his prerogative.
On the flip side though, the concession quite literally costs him nothing! It'd be like someone who can snap their fingers and make a sandwich magically appear from thin air, ala "I Dream of Jeannie", passing a starving person on the sidewalk, and refusing to feed the poor soul. True, the genie does not exist to provide for the starving man-- but the denial feels mean spirited nonetheless.
Then it becomes a question of motive: perhaps the concession is in psychic, non-material terms?