In Cassidy v. Highrise Hoisting and Scaffolding, Inc., the plaintiff fell 4 to 5-feet from a temporary loading dock at a building under construction. When not in use, a rail was in place across the loading dock. As a delivery was received, the rail would be removed. When the delivery was concluded, the rail would be replaced. Plaintiff leaned against the rail which came loose, causing him to fall. The First Department affirmed summary judgment to plaintiff, holding that his injuries were gravity-related and were the result of a failure of a safety device -the rail- which was intended to protect workers from falling.