Trying to negotiate with a toddler in the midst of an angry outburst is a futile exercise. Your child is overloaded with emotions in that moment and they need to let it out. Try to stay calm (although easier said than done), wait it out and be consistent with your response if your child is having a tantrum. Avoid giving in to your toddler’s demands just because you are in public, for example, as they will come to expect the same response next time.