What, like when you want to build a section of arched roof but the game thinks you want to build it IN the other roof piece instead of connecting the edges? Or a pole inside a pole rather than underneath it to stabilize it? Or a stone floor or wall piece that you want to connect edges with but the game thinks you want to build it half in the other one instead?

Yeah, I hate all those things. Not sure what the other guys in this thread are on about, but I know exactly what I keep being aggravated by. It's a questionable design choice that someone on quality assurance would have been logical to point out that it might not be well-received.