One of our friends said afterwards you expected them to fire up a barbecue and start grilling themselves a few burgers. It was literally getting funny by the end, as they popped Pringles lids, and unwrapped toffees and scraped away at ice cream cartons. I don't know how they carried that much food with them.
Anyway, I assume the problem was that they had no interest in that silly business on the stage, so food was all that they had to get them through the long afternoon. I could have smacked 'em.
(ETA - my comment on the play itself is here)