Ha,ha. Last year my son was having a luau in his back yard. Fortunately, he started a WEEK before by digging a massive "fire pit" in the lawn. Lots of rocks, lots of wood, charcoal briquets, palm leaves - the whole nine yards. He started the cooking Friday morning for a Saturday afternoon affair. By Sat AM he was smoky, tired, half crocked(they had a keg) and everybody realized the 50 pound pig would not be ready by that afternoon.
He dug it up, cut it up, threw the pieces in his & the neighbors ovens and after it was done and slathered with sauce nobody knew the difference.
The grass still does not grow well where the fire pit was. I ask, quite often, when will we have Luau #2, he just growls.