ok in the ex. everest room, i just found out that u can put chairs off the screen.
take the chair to the bottom of the screen and keep going off the screen. it acts like u can put the chair there (which u can and then u can sit in and talk to ppl but no one can find u - i've seen it happen) but i can't get it to happen in my room.
so try it and tell me if u get it to work and how