1.   In case you smack your head.

2.   Appleton smacks his head and wakes up the next morning on a northern California beach with no recollection of who he is.

3.   I had slipped in May, gone under in a river, smacked my head on a stone.

4.   Most Americans have seen the videotape in which Greg Louganis springs into the air, spins backward and smacks his head on the diving board.

5.   Sometimes he falls past the edge of the pad and smacks his head on the linoleum with a crack that would bring earsplitting screams from most children.

6.   He played just five minutes and scored just four points after smacking his head.

7.   He smacked his head against the right support bar and crashed through the crossbar, stunning the crowd and thousands more watching on Cuban state television.

8.   I smacked my head against the headrest and have a bit of a headache.