As a long time fisherman, I have always had some kind of fish weighing scale that I can toss into the trunk of my car if I'm backpacking with a group of friends (in the old days it was a spring scale and I now have a digital scale which seems pretty accurate).
I love to pull out the scale as the packs are unloaded from the vehicles and dare everybody to weigh their packs. I don't hike with light weight backpackers, so most of them have no idea what their final pack weight is (although I suspect some might do the bathroom scale weigh-in). Most people are very curious and want to know their starting pack weight but the odd guy will refuse. The scale is good to 50 lbs so anything over that is… well… just embarrassing for somebody! Most seem to keep it under 50 lbs for a week long trip.
My favorite thing is watching them struggle with the scale… it's really hard to hold a fish scale out in front of you with a 45+ pound pack on the hook!


