I've got one in my yard. The neighbors all know about it, and they enjoy watching people "hunt". The cache itself is an old mailbox, in plain sight right near the road in front of my house. The mailbox is locked with a combination lock, and the combo is hidden at ground zero. All you need to do is find the combo, open the lock, and you're in. Since it's so close to the road and not near the house, most folks are comfortable hunting it, and since it's very visible from the road, no one accidentally ends up in a neighbors yard looking for it. It's a bug motel and is really close to some major highways, which is why I put it up in the first place. On the cache page I request that people don't hit it between 9:00 PM and 8:00 AM, and I've never seen anyone disgregarding that request. (My dog is sure to let me know if someone does, which is why the limited hours). My wife was a little concerned at first, not sure how much of a hassle it would be, but she's fine with it now. I'm met a lot of nice folks at this particular cache, and everyone seems to like it. I think making the cache visible is a big plus, because people know they're in the right spot and it's OK for them to be there.
I have done Doc's cache and I would say it was actually more pleasant to hunt it than alot of the "public, urban" caches in the area. At least I knew that anyone that saw me was going to know my reason for the visit and not think anything of it. Some of the urbans I've done really put me in some conspicious situations/positions. I was also considering doing the same thing until Doc put his cache in place. No need for 2 bug motels less than 2 miles apart.
