This malfunction is somewhat uncommon, and therefore it is somewhat rarely discussed. My first time experiencing a “brass bungle” was during a major competition. I was pressed up against a wall in a narrow space and experienced the same problem twice, jamming my gun. Hot in the moment, I didn’t recognize what was happening.
Brass bungles are tricky like that. As a shooter, there will be a time you shoot near a vertical surface – the wall at the range for example. But it could also be in a tactical situation inside a house or during a competition against a barricade. The close proximity will cause spent casings to bounce off the surface and actually lodge in the ejection port before the gun has fully cycled. That's a brass bungle.