Hey, my friend (being the intruding kid he is) was going into everyones houses. How he did it was he was holding the move forward key, and then opened the door, and he got into house and was looking around. Don't know if this is from the 150 player thing or a mojang glitch or what.
I did the same thing a few days ago with my friends, but the only reason why I was able to go through my friend's doors is because I was lagging a lot. You really can't do much when you're inside the house but explore.
