I eject my last round up in the air and catch it. If it doesn't fly where I want it to and I can't catch it easily, I don't reach for it and reach sweeping my arm.
The reason? I'm shooting 9mm major. My rounds are loaded with Montana Gold bullets, which makes the whole round look the same color. Sometimes when the range is covered in brass, it's hard to spot my round on the ground. The last thing I want is for some club member at the range one day to come along, pick up my 9mm major round, and shoot it in their (insert gun name here) that isn't built to handle 9mm major and blow their gun and their hands up. Yeah, I wouldn't be there to see it, wouldn't be legally responsible for their actions, etc, but I still don't want it to happen.
I, too, am a flipper.