I'm doing it this second as I do every morning and night and have been doing it for a year now. No problems other than a few close calls. First obvious thing is the window if you have one. I sometimes sit my box fan in front of it to help blow the smoke out. The toilet paper roll works too.

I always pull the bong and make sure to clear the bottle everytime and hold it all in!

Toss a towel at the foot of the door so that no smoke sneaks out from under it. And keep some spray close by.