Some people are lazy and it's just easier for them to say, prove it to me, i don't want to do any research, i want you to give me everything i need.... but ive been over that before, which is why I don't reply to some of the mental midgets on this board.
It was also brought up as to why someone would dig a questionable signal, and said, oh i'd never dig a signal like that.... Hate to say it but I bet you lost a lot of stuff that way.
Sometimes if you are in an area that someone else was in recently, you can get their 'halo' and you might dig it. If it was a coin, is it still as strong as the original one was... nope, not even close, BUT.... in mineralized ground, sometimes that in itself can play games with you, and a faint signal could be a deep item, or one partially standing on end. Some dig, some don't....
For those who relic hunt,... you know.. civil war and stuff like that.... they dig a LOT of ferrous signals, because some of those signals can be worth a hefty handfull of $$$ if they dig up a breastplate or something like that... or a part off something... now, if you got a questionable signal, would you dig.. what would you consider questionable?? most of the rh'ers DO dig even 'off' signals because when dealing with that stuff, there really are no rules, or rhymes or reason to how what will sound when.... Many a motto is to 'dig everything' because even the crap signals and BONG iron signals can turn out to be something really good.....you just never know...
Now again, some areas, specially in the spring time, weeds grow fast, dirt 'heals' itself quickly, so lets say someone dug something out two days ago, and was pretty neat about it, get a light rain that night.. the soil washes back over the hole to basically make it disappear. Now that iron will leech significantly into the soil, leave a big old splotch... I come by two days later and am getting a signal, I might very well dig....
I remember digging a big piece of crap iron, think it was a pipe or something out of the beach.. big huge rusty clot of crap... threw it into the trash. but for a few weeks afterwards at least... id still get signals when i swung the detector over that spot, I knew what was down there, and dug once just to see what the ground looked like, yep, still rust in the sand, hence my signal..
Halo's do exist, and people do dig them occasionally, hence leaving a hole....
and finally...by definition, ANY hole is empty. you took everything out of it to make the hole. Hole = empty.....if there was stuff in it then it would not be a hole, it'd be called "a pile" of what stuff was in it.. and if the pile happens to be water.. then it is more commonly referred to not as a pile but as 'a puddle'....
Aaron