Run this in Ruby and enjoy.

fun.rb

def easier_life
  nilmm = NilClass.instance_method(:method_missing)
  NilClass.send :define_method, :method_missing, lambda {|*whatev|}
  yield
  NilClass.send :define_method, :method_missing, nilmm
end

def broken_code
  [:only_item][10].oops.thats.very.wrong
  [:only_item][10].oops.thats.very.wrong :with, :arguments
  puts "whatever, I'm always happy"
end

easier_life do
  broken_code
end

puts 'What happens without my hack? The answer after <enter>...'

$stdin.gets
broken_code

... and here you go.

Thanks for the bug report!