Yes, many many years ago I was in a swimming pool in Korea, with my Korean girlfriend, I didn't know she couldn't swim and she didn't tell us. A few minutes later, I see her thrashing about, struggling to keep her head above water, I swim out to help her and in an instant she's climbing on me, pushing me underwater in her attempt to stay above water, Now I'm fighting for air and came close to drowning. With my last bit of air/strength, I shove her as hard as I could towards the edge of the pool. She survived but I learned that day, saving someone from drowning you could end up being a victim yourself.