The perimeter wall was topped with shards of broken glass and coils of rusted barbed wire.

The neoprene boots come with a sturdy internal lining to stop broken glass or nails injuring a dog on patrol.

I didn't tread lightly on the broken glass but ground it in and stoked up some top grade, undiluted, sulphuric wrath.

Also, cycle tracks are often narrow, poorly surfaced, littered with broken glass, interrupted by trees and street furniture, and shared with pedestrians.

I squatted to pick up the broken glass.