I bought myself a minelab and searched my yard for a missing wedding ring. (wasn't there)
Anyway, it's starting to get dark and I get a strong gold signal. I dig down about a foot and nothing. Signal is stronger and I dig some more. I'm sweating up a storm and the mosquito's are eating me alive. I finally hit something and it's a flat metal piece. Treasure chest!!!! I'm rich!!!!
I don't use a light because I don't want to alert anyone to the riches I've just found. I continue to dig and finally the top comes up. That was it.. I dug a two foot deep by three foot wide hole in my backyard through compact clay and dug up a 16X24 board with a piece of metal on one side. Talk about disappoointment.