[0] Perl> %hash = (
              1 => {
                1 => "nothing",
                name => "Shrek",
                event  => "I saw shrek!",
              },
              6 => {
                1 => "nothing",
                name => "Donkey",
                event  => "I saw the donkey!",
                2 => "nothing",
                name => "Fiona",
                event => "I saw Fiona!"
              },
);;

##</code><code>##

pp \%hash;;
{
  1 => { 1 => "nothing", event => "I saw shrek!", name => "Shrek" },
  6 => { 1 => "nothing", 2 => "nothing", event => "I saw Fiona!", name => "Fiona" },
}