Story of his life. 
My son is, quite literally, the strongest willed person I have ever met and has always been. When he was a toddler, his babysitter who had many years of experience with babies and children, told me she'd never, ever, seen a child as bull-headed as he is. He wasn't even 2 when he had his first of many, many, tantrums...because I wouldn't let him cut his own nails. He fought and tried to get the clippers and fought some more and screamed and just totally lost it! He's the boy who would reach for something breakable and I'd tell him "No" and he'd just keep on reaching. I would pull him away and as soon as I turned my back he'd reach again. I'd slap his hand and he'd reach again. I'd slap his fingers harder and he'd cry ... and reach with the other hand. Until he was 3 I just kept everything breakable up high where he couldn't get to it because he literally could not be kept out of things. Older, if he couldn't do something he thought he should be able to, he'd try and try and try and finally have a meltdown. I picked him up from preschool once to find him in full tantrum because he was doing a maze and went over a line and they wouldn't give him another one. (He had an IEP before kindergarten and was in a special school program, his counselor he was seeing back then said he had to have more socialization and structure).
Once he was in school, things did settle down a bit, but he was still very hard to handle. Not that it was ever his fault that something didn't work out. Video games "cheated" if he wasn't able to win.
My husband has said more than once that, with his determination to have things his way, he'll either wind up in politics or in prison. I'm kinda hoping for politics.
