Many small aircraft wings are held on with 4 small bolts, one one each spar, and one on each end of the strut, so as you might imagine that with the failure mod

Many small aircraft wings are held on with 4 small bolts, one one each spar, and one on each end of the strut, so as you might imagine that with the failure mode involved, they are damn good bolts, and they are, but unfortunately people look at our atmosphere are shrug, and refuse to consider the failure mode, especialy as we have only one atmosphere, which we benifit from in so many ways, like right now it is holding up hundreds of cessena's and everybody is breathing it, but it's like going along in a cessena, while watching the wing bolt stretch, bit by bit, it's only a little cracked. Which to my knowledge has never happened, no one has ever pulled the wings off a 150, simply because good as those bolts are, they get checked, and fussed over, and changed long long before anything gets troublesome, because simply, some things are unthinkable and there are no debates or opinions, something held to be self evident.