If it don't fit, force it

... and even if it do fit, force it.

When Owen tries hard to open, close or otherwise move something, he makes a tremendous, open-mouth grimace. It exposes his four bottom teeth, and it looks like the sheer effort of whatever he's doing is pulling his face down his neck. If I have any pumpkin artistry at all, my jack o' lantern this year will be that expression.

Owen tries hard almost all the time. And for over a month, it's sort of made sense, as the name of the game was putting things in other things. Whether toys in a bag or shapes in a shape sorter, sometimes pushing a bit harder does the trick. But now we're trying stacking things, and in that case, using all your might generally doesn't help and often has the opposite effect. So the Young Gentleman will put one block precisely on top of two others, then push down almost until his arms shake, at which point - surprise - the tower falls.

I'm not worried, but this is curious. Do all kids do this?