gistfile1.rb

require "thread"

class Mailbox
  def initialize
    @stop = false
  end

  def stop!
    @stop = true
  end

  def run
    Thread.new {
      loop {
        # Work...

        if @stop
          puts "Waaaah"
          break
        end
      }
    }
  end
end

Signal.trap("INT") {
  puts "Wer?"

  @mailbox.stop!
}

@mailbox = Mailbox.new
@mailbox.run.join

puts "Teifl gschossen"