I LOVE Mother's!! Was just there. My buddy and I always stop for a beer when in the area...did you know they added outside "dining"...?? Yep if biker bar is what you seek...this is the place!...:oP
If a shooting can happen there, it can happen anywhere. And probably even if concealed carry were allowed, no one in there would have thought it was worth bringing a weapon to work or to their hair appt.