I grew up in a poor family. This happened to me a couple of times. As horrible as I felt, I wouldn't wish that on any kid. Because of things like that, I now overcook, just to have food for later. My daughter is 3 days old. If in the random event that my wife and I can't buy her lunch for the day, I'd love for someone to call me or bill me. Don't punish a kid for what their parents can't afford at the moment.