


The sheer size of his sword make accidentally cutting himself unlikely, as the sharp edge is above his head level. Polearm and blunt-weapon users usually don't have to worry about such problems however.

The flat of a double edged blade provides a side to rest it on as long as you watch out for the edge that's facing your head or neck. A double-edged sword can add danger, but that depends on exactly how sharp the sword is, what clothes or armor you're wearing, etc. A single-edged blade has a blunt back which can be harmlessly rested on the shoulder the popularity of this trope in Japan is probably related to the katana and other single-edged blades being the most common there. This can be safely done in real life if you're careful and have the proper training or just have the right weapon. It does have some level of practicality: a particularly large blade or gun is difficult to hold in any other way. It carries the I-Don't-Give-A-Damn effect while making the weapon look cooler. This is often invoked by characters whose weapon diagonally Sticks to the Back. This is when someone who forgoes carrying a sheath or holster and instead lets their weapon rest lazily slung over their shoulder when not in use. A popular pose for swordsmen, gunslingers, or any other title that is describing a specific weapon user.
