I aint gonna be stuck in a tiny room for 12 hours, So I'd rub my hands together til they're sore, pick up the saw and cut the coat hangers in half, two halves make a whole, climb through the hole and shout til i'm hoarse, climb on the horse and ride away from the prick that locked me up!!
NO!!! There isn't anything to smoke out of! Break the pic of Bea, use the glass to carve a channel in the clothes pin, cover it with a piece of glass tied with yarn, pack the bowl, light up, and dance around listening to music that may or may not be in your head.
HaHa. When I first read the question, that's what came to mind, 'yeah, I'll just sleep'... but a 12 hour nap is really long.. it would just suck not being able to sleep which I think would most likely be the case
I loved MacGyver when I was a kid! Get out of any situation with a paperclip a rubberband some water and a ray of sunshine!