You said I'd have my pack with me, and in my pack I have naturally my PSK. In the PSK I've got two altoids tins. I doubt they're FDA approved for cooking water in, but I'd be able to boil up small amounts (3-4 ounces, maybe they hold?) at a time. Since it's winter...I won't mind having a hot drink and if it means surviving...you do it.

But like I said....You said I'd have my pack with me! And what do I keep in my pack? A sierra cup. A one cup sierra cup. That'll do nicely.

I'm always scared to answer these kinds of posts lest I make a mistake and say to myself "Damn. I would've died."