Sadly I have been busted many times by the jokers. Smell sight or sound will give a taunting bark from time to time. I started using a scent suit a few years back and did away with getting winded. Sometimes I'm not paying attention and they run away barking when they figure out the speaker is making all the racket. They get shot in the butt for their trouble.
It never fails when I'm sick and coughing one is looking. I generally don't get them though. By the time I get the rifle up they are gone.
Blessings