Honestly,
On an USFS Passport In Time Project of a CCC Camp, I followed the alighnment of a Terra Cotta water drain pipe to the showers by locating the GLAZED pipe feature, no problem. You see, in the Glaze, there are metal ingredients, that my Fisher GB Pro could sense...! THAT surprised the archaeologist on the project....!
Crossing creeks by balancing on downed trees - that machine sure comes in handy for Shoving Aside blackberry vines, so you can get to the Berry-Bonanza, that I could see just beyond reach...;
Weapon of Defense against ankle-biting dog;
Encountered a BEAR , and scared it? away, with my machine, full volume THRESHOLD/pinpoint. I don't know who was more surprised....He, probably.... (honest)