Well that just happened to me I was coming home from the eye doctor and I got out of my van headed to the neighbor's driveway and didn't pick up my foot far enough and down on my knees I went and onto my back on top of my cane. Thank God it wasn't raining . So I used my emergency call button the VA supplied me with and got a 911 operator and used the phrase ( I have fallen and can't get up. ) So the firemen came and used a lift blanket to put me back on my feet > I got a small gash on my elbow and scrapes on my knees. But I am doing OK .