When I was leading beginning backpacking trips in Northern Michigan a few years ago I had two crazy crazy experiences with people (well, way more than that, but two that are relevant to our conversation). Here is one of them:
This guy asked to bring his girlfriend and said he'd keep an eye on her and do a pack shake down for her. He'd been backpacking "a lot" he said, but this would be her first. Since the trip was all of 9 miles over 2 days (specifically a beginner trip) and along the Manistee River Trail (easy easy, walk along the river so no water issues…perfect beginner trip) I said GREAT! Bring her along…
Well……
At breakfast (everyone arrived Friday night late), the couple dragged out their massive 90L packs, opened up a huge box of pancake mix and made pancakes on their 8" frying pan using their metal spatula. "We're going to eat like KINGS on this trip!" he said.
Clue #1.
Then we all pack up, not really paying attention to them and hit the trail. About 15 minutes in the girl, wearing blue jeans and a huge cotton hooded college sweatshirt, starts to cry. Her arms are numb and her shoulders hurt. She borrowed her son's backpack (he was obviously MUCH taller than her) and didn't really know how to adjust it. So we helped her with the straps.
Clue #2.
Then 5 minutes later we have to stop again, because she's still crying. We empty her pack. She was carrying CANS of food – not just for a meal or so, but cans of INGREDIENTS to make several meals, 5L of water. YES, 5L of water to walk 9 miles next to a full, flowing river. We dumped it ALL out. The guy protested…"she needs that to drink!"
Clue #3.
Then we stop for lunch. They pull out even more cans, full boxes of pop tarts…turns out she had a clean pair of blue jeans and a clean, thick cotton hooded sweatshirt for the next day, as well as a full pair of flannel pajamas.
At this point the whole group basically shames the guy to carry literally everything from her pack except her clothes. Apparently he was a boy scout leader and that's "how WE do it!"
We BARELY made the 9 miles by sundown on Sunday…in time for the 6 hour drive back to Chicago.