A "tree stand" AKA "deer stand" is an elevated platform or seat typically placed up in a tree. It provides the hunter a better location to observe and shoot while raising his scent up above ground level.
To trespass onto private property and "borrow" another guy's stand can be considered equivalent to breaking into his garage and taking his Corvette for a joy ride.
{Consider me an expert in redneck etiquette.}
"..taking his Corvette for a joy ride."
If you are a bow hunter, it's more like someone doing missionary work with your wife.