Yes, that is getting into build mode, REBORN.
So you're thinking, who cares, right? Its not that good lol.
But wait, here's the cool part.
I can get into ANYONE'S house, as long as they are logged in on that world. I can get in building mode or not, and they have absolutely no power over me. Which means, they can NOT expell me, or log out to force me out. I can leave whenever I want to, and when I do I get FTED back to a place thats secret, or you'd probably find it (HINT).
Also, I can appear ANYWHERE in there house:
Btw, some creds to Jared who helped a lot, but did not actually find this glitch. (He knows it now, though.)
Goodluck finding it, highly doubtful though ;).
More credits go to
SAYANK (Clank) for the concept.