bad_kitty.rb

# coding: utf-8

# Can ruby have method names have newlines/be crazy?

class BadKitty
  FACE = "
    |\\_/|
   / @ @ \\
  ( > º < )
   `>>x<<´
   /  O  \\ "

  define_method(FACE) do
    puts "BAD KITTY"
  end
end

BadKitty.new.send(BadKitty::FACE)
puts BadKitty.new.methods # Well shit.

For hard mode, see http://99designs.com/tech-blog/blog/2012/10/30/abusing-ruby-for-fun-and-profit/