Harvey Weinstein’s Miramax wasn’t exactly the type of place that allowed much loafing, but apparently he has no interest in having his kids be workaholics too. During parents’ night September 29 at the tony private school Nightingale-Bamford, which Weinstein’s daughter attends, the consummate deal-maker stood up and asked if it were possible to lighten the homework load for fifth-graders. The school said no. “The other parents laughed. They thought it was funny, adorable, actually,’’ said one observer. Weinstein recognized when negotiations were over and simply took his seat again. A Weinstein Company spokesperson refused to comment.