[quote=@Mateotis]
<Snipped quote by Melo>

Well yeah, but the timing of new arrivals (if any) are never known in advance, right? There's always some random factor. And risk, of course, if you underestimate the victim's strength/cunning. [s]khm Sayaka khm[/s] Ariamis' idea is interesting to theorise about, at least.

Because no one is going to [i]actually[/i] kill anyone, right? We're all frieeends!
[/quote]

I guess, but there's also the challenge of killing everyone, while avoiding the sisters/the doctor from killing you :P 

It is possible, but it sounds rather tricky :D