It's hearsay, but a friend of a friend cooked something on skewers of either poison oak or poison ivy (I don’t remember which), and suffered for it. I don't think you want to get near the smoke when either of them are burning, let alone let them near your food.
That's actually true.
My comment about not using evergreen woods for food preparation is just paranoia perhaps, but it's so easy to avoid... *shrug*
