Hi,
I am sharing flats since almost 8 years ago and fortunately I have never a bad experience more than someone who doesn’t clean enough. I think I was pretty lucky about that.
I would never go to a tv show like “The House from Hell” and as a sociologist I get angry any time they call this kind of shows a “sociological experience”. My intimacy doesn’t have price.
About the questions for a possible flatmate:
Do you smoke?
Do you like pets?
Are you clean?
How are you doing?
How old are you?