Sure I am-but I couldn't resist it-because of what happened to me about 20 years ago. I had the AH Pro detector. Now, if you can remember anything about the machine, it was the BEST discriminator around-only thing was that you could strain the threshhold to max and if you were lucky you could detect a coin 5" in the air. Now when you put it to the ground with all those minerals, well, you can imagine. Anyhow, to finish my fish story(which is what my friends thought it was back then) I got a signal out in the middle of an old fair grounds. The signal was WIDE, and soft and I could lift the coil 4" off the ground and it would still be there. Aluminum can-had to be. I took my knife out and plunged it to the hilt and this further verified CAN. I dug a wide circle and plunged the knife all the way again and dug that hole out and with one more plunge at an inch or two I heard a "clack" sound. When I retrieved it the prettiest Silver dollar from the 1800's came out-with the ugliest knife gash in it. Now when I told my friends 14" AND I was picking it up at 18" they were grinning as they were saying Congrats. So to those who say that it's not possible.......