Just realized my glue joints were failing because of one comment
I built a bookshelf two months ago and it wobbled every time my cat jumped on it, so I asked a buddy who does theater props to look at it. He said my flaps were cut at the wrong angle, not the glue, and that I needed to score the creases before folding because the box fibers were fighting me. Once I started scoring every fold with a dull butter knife, the joints held rock solid, has anyone else had a similar fix from an outside pair of eyes?