True! I have been laid up a few times and unable to drive, so I make sure I have plenty of staples, including dry milk (ick) and the stuff needed to make bread. Plenty of canned goods, of course, and a freezer full of frozen vegetables. And don't forget the raisins and prunes!
The next person keeps jugs of water ready, just in case.
"There is no worse tyranny than to force a man to pay for what he does not want merely because you think it would be good for him." - Robert Heinlein