I do have, and usually carry, extra batteries with my camera bag, but this time I was caught off guard, and left most of my things at home... I think I'm going to risk a leningrad meter, for under 10 bucks, and see how that goes.
People, keep in mind that I'm a cheap bastard. I use surplus film, on used cameras, and develop in diafine just because I can re-use it a lot. I can't help it, its genetic.
Thanks for the magnet advice, though.