An amateur metal detectorist profoundly believes in that maxim and it came true when he uncovered up to 15,000 Roman coins buried in a hoard that could be Wales' biggest-ever treasure find.The BBC reports David Moss, 36, from Cheshire, made the discovery that left him in disbelief after he dug up up two clay pots in an undisclosed northern part of the country.But the epic find in a muddy field left him fearing they could be stolen, so he slept with the treasure in his car for three days before taking the coins to experts, the BBC notes.The coins are...