Premise: A child wearing rollerblades , knee pads , a helmet , and elbow pads is skating down a paved path .
Correct statement: It is impossible that a child wearing rollerblades , knee pads , a helmet , and elbow pads is crawling across the room .
Incorrect statement: There is a better than even chance that a child wearing rollerblades , knee pads , a helmet , and elbow pads is crawling across the room .