binding_craziness.rb

class CreatedContext
  def p
    Proc.new { |x| puts "proc: #{self.inspect} on #{x.inspect}"}
  end

  def l
    lambda { |x| puts "lambda: #{self.inspect} on #{x.inspect}"}
  end
end

class Foo
  def run(blocky_thing)
    blocky_thing.call(self)
  end
end

def magic
  puts "lambda: #{self.inspect}"
end

Foo.new.run(CreatedContext.new.p)
Foo.new.run(CreatedContext.new.l)
Foo.new.run(:magic.to_proc)