use Math::Random::OO::Normal;
  push @prngs,
      Math::Random::OO::Normal->new(),     # mean 0, stdev 1
      Math::Random::OO::Normal->new(5),    # mean 5, stdev 1
      Math::Random::OO::Normal->new(1,3);  # mean 1, stdev 3
  $_->seed(0.42) for @prngs;
  print( $_->next() . "\n" ) for @prngs;