While Xiao Ming and his father were sleeping one night,
a thief with his face covered by a piece of cloth
entered the room quickly,holding a knife in his hand.
Although he tried to walk as quietly as possib,Xiao Ming
and his father were woken up.Realized what had happened,
they fought bravely against the thief.Suddenly an idea came into
Xiao Ming's mind.He throwed a drawing pin on the floor where
the thief might pass.As expected,the thief stepped on the pin
and was hurt badly.Screaming in great pain,the thief fell down.
Xiao Ming and his father took chance to tie the thief up.