P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning What to do if the dog wriggles out of the harness The JULIUS-K9 chest harnesses have been designed for ease of use and for simple application. These types of harnesses are therefore most commonly used during city walks or when working with service dogs. As a result of improper leash use, sizing, or harness adjustment, some dogs can still wriggle out of the harness. If the leash is inadvertently pulled in the opposite direction to how the harness was put on, the harness might be pulled off the dog. This can happen if the harness is adjusted too loosely, the dog starts moving backwards trying to run away.