Sometimes I Hate Ruby

wtf.rb

require 'delegate'

class Foo
  def select
    'Foo#select'
  end
end

class Bar < SimpleDelegator
  def a
    self.select
  end

  def b
    select
  end
end

foo = Foo.new
bar = Bar.new(foo)

# This call works as you would expect
puts bar.a

# This call results in an exception, because it actually invokes Kernel#select instead of Foo#select
puts bar.b