Drunken Wasps?

I made the brew yesterday: yeast, beer and blended grapes. It fermented all night, sitting on a heating pad. Then I put it in a wagon and rolled it to the crop garden at the UC Botanical Garden. Then I went to book group, hoping some butterflies would find it and get drunk. At book group I saw a buckeye and a termite fluttered over the table for a moment, while everyone admired the glittering wings. After book group, I took the butterfly watchers to the mashed grapes. But we only saw wasps. Oh well.