The thing that perhaps is closest to all of us is our own skeleton, and there are certainly all kinds of stupidity in our design. No self-respecting engineering student would make the kinds of dumb mistakes that are built into us.Wise forgets that Christians, besides salvation, get the benefits of perfect teeth, wonderful sinus drainage, and perfectly perpendicular pelvises.
All of our pelvises slope forward for convenient knuckle-dragging, like all the other great apes. And the only reason you stand erect is because of this incredible sharp bend at the base of your spine, which is either evolution's way of modifying something or else it's just a design that would flunk a first-year engineering student.
Look at the teeth in your mouth. Basically, most of us have too many teeth for the size of our mouth. Well, is this evolution flattening a mammalian muzzle and jamming it into a face or is it a design that couldn't count accurately above 20?
Look at the bones in your face. They're the same as the other mammals' but they're just squashed and contorted by jamming the jaw into a face with your brain expanding over it, so the potential drainage system in there is so convoluted that no plumber would admit to having done it!
So is this evolution or is this plain stupid design?