...that's assuming that the one in ten figure is correct in the first place (which I wouldn't be surprised by because most people are impulsive twats that don't have zero self-control).
The one in ten figure was for middle class people. They found it could be as high as one in three for working class people, but I can't remember who gathered the statistics.
My brother's wife's sitster's boyfriend knows a guy in university who claims to be doing a study indicating that NOBODY can be fathered by other than the real FATHER and that number is actually FIVE TIMES greater in Iceland.
Come on guys at least post some sources for your bullshit.