People won't try to steal what they don't know you have
I believe strongly in keeping my preparedness assets hidden. One of the wonderful things about rabbits is that you can raise quite a few in a very small space. I know that it is so much easier to set up the rabbit hutch out in the open air so that ventilation is not a concern, but I believe that an eye must be kept towards the future. When (not "if") our economy drops into the tank, many people will devolve to a basic, predatory beast. This means that they will be willing to steal anything that they need and don't have. It is much easier to protect your assets when no one is trying to steal them. This is why I keep my rabbit herd hidden.
Sure, with them in the side of my garage, I have to worry about keeping the air clean, but box fans are cheap at Walmart and my neighbors don't know that I supply almost all of our meat needs from my own property.
When times get tough, and scum-bags start looking around to see what is available for them to steal, my property won't be a prime target.
Just my $.02...(actually, after inflation, it is only about $.00139).