if there was
A competition for worst behaved toddler my kid would win hands down!! ??
Have you tried limiting the times you have to say no. For example if they want to eat a sweet you say lets have an apple instead not no. All they hear is no they don't hear anything you say after it. In the pan incident instead of saying no say let's play Lego or give a choice like do you want to play with your blocks or your dolls now and direct them to an activity away from the pan.
That's I found worked during my sons defiant stage.
It makes me feel better in not the only one lol. My son will be 3 in August it seems like he gets worse every day. I'm to the point I'm going to make an appointment to have him evaluated.
Mine will be 4 soon. She just threw a tantrum at 6am throwing herself on the floor and screaming because the lid on her Betta fish tank was slightly open