If a ladder is not available, a fire fighter has few options for rescue if trapped on an upper floor. Finding a window should be one of the first actions a fire fighter should consider. When at the window the fire fighter must clear the opening by breaking the glass and removing the sash. This will provide a clear egress point for the fire fighter to get outside. The window hang technique requires the fire fighter to hang from the window sill after the opening has been cleared. The fire fighter should move head first out the window and hang using one arm and one leg. With most of the body outside off the window and below the sill, exposure to the heat and smoke is minimized. Like all of the skills listed within this section, it is important to practice these skills frequently. If a window close to ground level is not available for practice, a prop to support this skill can be easily built.