lol, in my job as a maintenance manager I am all over the place. it could have been inside walls, on the roof, under someones desk...I work in a building that's over 200,000sq.ft
that's why it took a month to find it. I use it probably a lot more than the average person, it's my main tool and comes out of the sheath at least once an hour.
retracing my steps isn't always an option!