rand find from a collection

rand_find.rb

  def rand_find(num=1, &p)
    scope = p.call
    items = []
    rand_numbers = (0...scope.count).to_a
    
    num.times do
      break if rand_numbers.size == 0
      rand_number = rand_numbers.delete_at(rand rand_numbers.size)
      items << scope[rand_number]
    end

    items
    
  end
  
  rand_find(8) do
    User.where(status: 0)
  end