It is popular to see (modern) gangsters holding their guns horizontally (roll, not pitch), as opposed to the usual upright. I was discussing this with a gun friend. He insists that there is no reason whatsoever for it but for trying to look cool (or stupid, if you are trained in gunfare), and it is actually terrible for aim. I was under the impression that it has its roots in a twisted form of efficiency. The idea is that, in a firefight, your targets are pretty indiscriminate. While firing rapidly (and therefore with poor bracing and setting), the kick-back - may spoil your aim - but it results in a more likely hit on other targets of opportunity in the crowd of an opposing gang. Any merit to this?