I was half-joking when I Tweeted to any homeless that I’d spotted a big tray of fancy picnic food — sandwiches, Taleggio, bruschetti, expensive fruit etc. — laid out for sharing atop a trash can near our apartment. But it was reTweeted. Which made me wish there could be some actual way to alert the hungry to easy pickings, because I’ve been thwarted so often in trying to donate perfectly edible food over 31 years in this town. Either pantries don’t want anything in jars or the firehouse has no idea what food drive advertised in the paper I’m talking about or the big-time gatherer doesn’t think I have enough mega-party leftovers to matter or everyone’s just afraid of home cookin’. Maybe the city should just hand out Twitter-enabled smart phones. We might hear the last “I’m honnngrry” hard-luck story on the C train.