Same here... I was taught to shoot however it felt comfortable to me (lefty) and used righty guns. I am naturally left eye dominant, so I just got used to shooting right handguns/shotguns/rifles/etc...

The ejecting shells are not an issue with a pump action, lever action, or bolt action. But with a semi-auto, yeah... there is a chance of getting biffed by an ejecting shell case. I remember my dad teaching me to just angle my right elbow and forearm down a little bit and that was all it took.

Butch A.