It makes sense. After all, in real life I would just wiggle the peg to "walk" it back out of the hole, and that only works if the body is not perfectly rigid, and no body is perfectly rigid.
I'm currently repairing some 1940s windows and replacing the hinges. I can say with confidence that some things are completely rigid and will never be moved despite use of hand and power tool. Old hardwood and steel construction.
