I've used the Heimlich maneuver once in my life. Interestingly, it was on a nurse anesthetist - who also knew enough to do the hands-around-neck choking sign to

I've used the Heimlich maneuver once in my life. Interestingly, it was on a nurse anesthetist - who also knew enough to do the hands-around-neck choking sign to indicate what he needed, and turn around so I could do it. In the surgery lounge at a hospital. Popped out on first try.