Killer retailer lunch lady

The killer lunch lady looks so innocent with her white hair and her cat's eye glasses, but don't be fooled. She watches all the children at school waiting to see who gets the free lunches everyday. Because in her mind noone will miss a child they can't afford to feed! She breathes her gross raunchy Breathe on them which paralyzes them. Then she takes them and murders them so there is one less mouth to feed.