I would say that using it safely, with eye protection, and not showing it off too much should suffice for ground rules.

The house I am remodeling came with a Sheridan air rifle, it was my grandmas and now she lives in the heart of town, so I have it.

It is a sweet gun, dear old granny used to use it on those black and blue, jay-type birds. They would get into the food she put out for the smaller, cuter birds, and instead of shooing them away, or getting a feeder designed for small birds. She would kill them at basically point blank out the kitchen window. A little vigilante justice for the little guy, or bird.