Something more like this,
http://entertainmentguide.local.com/DM-Resize/photos.demandstudios.com/getty/article/251/89/87528642.jpg?w=600&h=600&keep_ratio=1
except much older, with a blue handle, and rusty.
One fine day, 6/7 year old me found a hatchet in our shed. He was like, "Holy shit! I could cut woof with this!" Lo and behold, he could indeed cause 2x4s some incredible mangledness, but he couldn't chop it in half because it was dull, old, and rusty, and the wood was just sitting on the ground, which absorbed the force. If he couldn't chop normal wood with an axe, how would he ever be able to chop imaginary bad guys with an axe!? If he couldn't chop bad guys with an axe, what the fuck kind of Viking king was he going to be!? (He had arbitrarily decided to crown himself King of the Vikings, because there were no other Vikings around that had axes.)
So in order to chop this 2x4, he put it up between 2 saw horses raised it high up over his head, and smashed it.
The problem, which little me had failed to consider earlier, that the 10 or 20 previous attempts to cut the 2x4 in half had significantly weakened it. Not enough to make it snap like a toothpick, it definitely took a bit of force, but not enough to stop the swing of an overzealous tweener.
And then, it was buried in my knee. Well, not buried, but it stuck in there a little bit before fall in out of my hands. Glanced off my kneecap, so nothing of import was lost, save for many, many brave skin cells, but it did hurt like a birch and I cried the manliest tears I had ever cried up until that point in time and kept asking my parents whether or not I had a shot for rust.
Luckily, I did have a tetanus shot. But they still disinfected it with spray shit, and it hurt like an absolute anus. 5 stitches, IIRC.