"I imagine with two teenage daughters the safety of the study/PC room is regularly sought?"
Mate .. your not wrong there !
I regularly escape to the 'computer room' and my mini arcade
I am the only male in my house , even the 2 cats are both female
If I could find the $$ I would build a shed so I could expand my arcade plus lock em out !! , but have just had a major bathroom reno done, plus took the family on a 10 night cruise early Dec 08 , so gotta pay some $$ back to the mortgage before I can spend any more on my addiction