The dynamite-loaded buzz axe is stuck vertically into all your weapons in each slot, even when you change what is equipped. You run around with the dynamite sparklers going. And depending on your scope, when zoomed your view is obscured by the handle.
I don't know if it would do it every time, but it happened for me in Sanctuary when I activated BXR and before it ended turned in a story mission.
It stayed for the rest of the session. I wasn't able to ask the other guy in my game if he was seeing it (he blocked messages); and I would've checked with splitscreen (and taken pics or a video) but my gold ran out and ended my game. --- It's raining luggage and babies and limbs and Daddy doesn't come home.