Only once, we were on the back side of a park along the river. My friend was probably 50 feet away, and a cop came driving up the sidewalk, which kind of boogered me, stopped and rolled down the window, and now I'm thinking, "Dang, we're busted for sure." He just asked if I was finding anything, I told him just a few modern pennies, and he said "good luck," and continued driving down the sidewalk. The area was actually full of rubble, and there were lots of junk iron targets, and my friend was in the best spot, he found a v nickle and a couple of other older coins. All I found was clad. The town I live in actually blew up back in the 50's. A truck load of dynamite flattened the down town for several blocks. I think that spot in the park might be where a bunch of rubble from the blast was dumped. There is another park right next to the American Legion Post in town. Tht park is the location of first place that the house didn't burn, but was blown off it's foundation. I tried detecting there, and the junk is unreal, kind of like besides what was there, they brought in fill. I got some clad out of that park, but it's impossible to hunt. At the time of the blast the local feed store was in the total level and burn section of the blast, perhaps 100 yards from the river, and their safe disappeared, and has never been found. Most people feel like it was blown into the river. If there was any change in the safe, it would all be silver.