Ah - I don't consider them as "obstacles", but "traps". For me, it sometimes gets stuck under certain chairs. There is a path for it to "escape", but about 25%

Ah - I don't consider them as "obstacles", but "traps". For me, it sometimes gets stuck under certain chairs. There is a path for it to "escape", but about 25% of the time it gives up. So when I do that room, I have to rearrange it so the chairs are not in the path. As a result, I rarely do that room. I doubt their "smartness" will figure out that it may get stuck under those chairs. But even if it did, I wouldn't allow it to communicate home.