# another great snippet courtesy of http://heypanda.com/
 
class Fixnum
  # returns seconds
  def hours
    self * 3600
  end
end
 
def forever
  while true
    yield
  end
end
 
def work(intensity)
  puts "You worked #{intensity}!"
end
 
def play(intensity)
  puts "You played #{intensity}!"
end
 
# sleep is a Kernel method. Alias before overriding.
alias :old_sleep :sleep
def sleep(time)
  old_sleep(time)
  puts "You slept for #{time} seconds!"
end
 
# And the original code...
forever do
  work :hard
  play :hard
  sleep 5.hours
end