Mad Mary was speeding around the mental hospital as usual in her wheelchair.
Mad Joe stopped her and asked for her licence. "Shit!" said Mary and sped off around the corner.
Mad Jim stopped her and asked her for her insurance. "Fuck" said Mary and took off down the corridor.
Around the next corner was standing BIG JOHN, stark naked with a massive erection.
"Oh no!" says Mary "Not the breathaliser again!"