That is the second post I have read recently about cabinets falling off walls. Though the other might have been an old post - I can't remember now whose it was. I was having a fit of randomly following up commenters to see if their blogs looked interesting.

When our front porch was rebuilt some twenty years ago, it was discovered that the side supports for the old steps (they may have a proper name I don't know), which are usually single pieces of wood with sawtooth bits cut out, had instead been constructed by nailing triangles to the edge of another piece of wood. I am amazed that the triangles didn't pull out about two weeks after being so nailed. The steps had felt a bit rickety, but little had we known how rickety. As my sister said when she saw it, "Someone wasn't very clear on the concept."