She couldn't get through the door without banging his head.

He started banging his head against the wall a couple of times.

You might as well be banging your head against a wall.

He sat up suddenly, and banged his head on something.

He banged his head; there was no room to stand.

He was with you, banging his head against your shoulder.

With no answer, the child starts banging his head at the feet of God.

But none of this banging your head on the ground stuff.

"After the second day, I was banging my head against the wall," he said.

You have done the right thing, to give up, otherwise it would be like banging your head on the wall.