METHOD MISSING?

NOPE!

Tired of bugs because of typos?

Let fuzzy come to the rescue

class Account
  include Fuzzy

  def pay! other_account, amount
    other_account.balance += amount
    balance -= amount
  end
end

jeff = Account.find 1
a = Account.find 123
a.balance
#=> 10.0

a.paid? jeff, 10
#=> 0.0

What could possibly go wrong?

Nothing! No more pesky exceptions, no more whiny ruby interpreter incapable of making sensible guesses about what you actually meant.

Come on Ruby! Use some common sense.