So I have an apartment in North West Washington, D.C. and I was wondering if this is even a remotely plausible idea. Would it be illegal if I were to set up an arrow stop in some secluded alley behind my apartment and do some close range shooting just to keep my form in check? I know how this sounds, but I would be looking for a spot with just a large brick wall, no windows where I can set up my arrow target. I could find nothing in the D.C. legal code about this, so I was wondering if I could get away with this. My best guess is that it's prohibited, but I didn't see a law, and there might not be one as I imagine this is not a scenario the D.C. PD encounters often. I have a bright blue aluminum Olympic style riser that looks in no way menacing, and I would be standing no further than 20 feet from the target, so pretty much eliminate any possibility of an unsafe situation.