I have a nephew that was mowing the lawn with a push mower when he was maybe 14. He was wearing tennis shoes and pulling the mower backwards when he slipped and the mower went over his toes. The blade removed the tops of both shoes clean off for 2" back and left 1" if sidewall all the way around. Not a scratch on his toes! Not a scratch. His dad mowed the lawn for quite a while after that incident.
Somebody I knew growing up was pulling a push mower backwards, bumped into something she didn't know was there, and did same.
Beat her toes black and blue, but could have been much worse.
My sister was walking backwards on her lawn while gardening, hit the grass shears she had put down (blades open), slightly curved handle dug in, drove one of the blades into the back of her foot. Only good part - missed the A tendon.
I started reading this thread, thinking "Coby is a sandalist".... but I'm pretty much one too....
Some cupboard here has a pair of black heavy lug sole sandals with an ankle strap. Somebody here mentioned Grampa wearing these sort of things on the odd kick back and relax day...... mentally I guess I reserve them for days like that, which don't happen often enough

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When I travel (much like the guys from Sweden in the desert), I like to explore a bit. Head down some trail, you never quite know what you are going to get into..... open toed anything isn't what I want on.
Depends what you get used to. My Dad and his bros would run barefoot through some really heavy bush after chores on the family farm, something like 1.5 miles, to the river to swim. One poster on here has feet that tough, but that slow walk for me would take hours barefoot.
Rgds, D.