It was almost two days since he'd hit his head.

He hit his head going over, and saw stars for a second.

So, you know, I hit my head on the car door.

"I think you hit your head a little too hard."

Some of the stone wall where she'd hit her head.

Then something else hit her head and she felt nothing for a time.

The wall was too far away to hit my head on.

He would probably have hit his head against the wall, that's what.

He must have hit his head for it killed him.

One of them could have hit his head and died.