I would personally stay away from the foil too. And as far as eating goes, I was under the impression that cannabinoids are fat soluble, and that our stomaches don't have the enzymes required to break the pot down efficiently. Cook it in oil or butter first. But since you don't have the time to cook, just go to the store and get some papers!? Make an apple pipe, roll a joint, whatever. I would stay away from smoking out of pens and stuff, if you use plastic in your contraptions, make sure that it doesn't heat up. And rob a screen from your bathroom or kitchen tap, or the local hardware store.

Stay High.