I learned my lesson, sorta.
Went to a park nearby in Elk Grove, Ca. around 1980 with a greenhorn and he was excited to find something. Handed him my Whites and he was digging up everything(about a million beavertails and poptops), I mean he dug every single signal and an hour later after covering about 10 square feet basically in the middle of nowhere of the park grass he pulls up a gold diamond encrusted ring which he sold for $4100. ARGHHHH!!!
Fast forward 2000 I'm back into detecting and had forgotten the lesson after years of gold dredging. No jewelry.....then it dawns on me, get off my butt and dig more "iffy trash" and like magic, jewelry ! Started finding rings and chains again. Business busy and fell out of detecting again.
Now, actually two days ago I got a MXT Pro and starting just a step above "greenhorn" again. Gotta relearn the blips and beeps, the odd readings indicating jewelry likely even as its indicating as trash or more like "5 cents or ring". Arm & shoulder is sore, back is sore, knees are dirty. Got the little pile of clad growing, a 3" copper bell shaped thing or whats left of it after the park lawn mower whittled on it a bit, got the dog tag, the key, the porno token and a bus token...I need to dig more trash, I know them rings'n'stuff is awaiting for me to bring them back into the sunlight.
Moral of the story - DIG, DIG, DIG !