Riddle: Paul called his detective friend to report a theft. The man suspected his neighbor, Ms. Andrews, whom he thought stole his favorite figure. Paul said, "I was vacuum cleaning my room upstairs when I heard footsteps downstairs. I ran downstairs in time to see Ms. Andrews running away with my figure,". Ms. Andrews denied everything. Who should the detective believe?
Answer: The detective should believe Ms. Andrews. Vacuum cleaners are usually very noisy, so Paul couldn't possibly hear anything, let alone any footsteps.