A guy wearing all black at a bowling alley standing in front of a lane with a black bowling ball in it .
There is a better than even chance that a man throws a gutter ball at the bowling alley .
There is a better than even chance that a man throws a gutter ball at the bowling alley .
It is impossible that a man throws a gutter ball at the bowling alley .
A man throws a gutter ball at the bowling alley .