1. I have never shared a flat with one of these "flatmates from hell". In fact, I think I was really lucky to find the guys which I lived with for... 5 years! I just knew one of them, and the other two asked an announcement I posted at the university. It was surprising to meet people with such common interests and characters, we couldn't get along better and, after all these time, they are still some of my best friends.
2. I have some clear ideas in my life, and one of them is that I would never go in for a competition like "The ouse from hell". I wouldn't be able to share a flat with people that only wants to get rid of me to win the contest and, besides, with a lot of cameras recording it. And, frankly, I think that there's no money enough in this world that can compensate it.
3. Here are some questions I would ask to anybody who wanted to be my flatmate:
What kind of music do you like?
Do you like cooking? Which is your favourite cuisine?
Do you like dogs?
Where do you work? Which work schedules do you have?
Do you like mountaneering or climbing?