Pretty sure this has been done before but just in case.
EXT. ROAD. DAY.
A POLICEMAN HAS PULLED ASIDE A MOTORIST, THEY STAND BY THE SIDE OF THE MOTORISTS VECHICLE. THE POLICEMAN IS ADMINISTERING A BREATH TEST.
POLICE
Blow in here sir.
THE MAN DOES SO. THE MACHINE MAKES A NEGATIVE NOISE.
POLICE
Sorry sir I'm gonna have to ask you to do that again.
UPON EXAMINING THE BREATHLYZER WE NOTICE THE IS A TUBE COMING OUT OF IT. WE FOLLOW THE TUBE TO REVEAL:
EXT. FIELD. DAY.
A GAGGLE OF KIDS AND PARENTS STAND DEJECTED ROUND A DEFLATED BOUNCY CASTLE.