Quote: Griff @ January 20 2010, 1:14 PM GMTYou leave the apostrophe alone, Nogget, you flipping vandal.
"The boy's rubbish" is not ambiguous.
It clearly means "The boy is rubbish".
"The [rubbish belonging to the boy]" would not be a sentence as it does not have a verb.
True, but what about screenplay format, e.g.
MUM IS WALKING OUT OF BEDROOM CARRYING A SMALL BIN. DAD CROSSES HER IN THE HALL
DAD:
What's in the bin dearest?
MUM:
The boy's rubbish.