Short Joke: I'm on drugs

[yetadem]

A policeman was walking with his sniffer dog. Suddenly, the dog ran to a guy by the corner of the road, then runs back to the policeman barking. The policeman went to meet the guy and this conversation ensued...

POLICEMAN: This dog tells me you're on drugs

GUY: I'm on drugs? You're the one talking to a dog.