Is that shelf you built solid, or about to fall

[Slay]

You measured twice, mostly, and now that shelf, cabinet, or whatever you built is sitting there in a genuinely dual state, it's solid, load bearing, entirely trustworthy, and it's one slightly heavier book away from coming off the wall entirely

Nobody actually finds out which version is true until something eventually gets placed on it, which is either the moment of vindication or the moment everything comes crashing down

Describe your own build, however shaky, and tell us which way you're betting. Sound or falling