Possibly the best monkey patch I've ever written

ultimate_monkey_patch.rb

class NilClass
  def method_missing(m, *args, &block)
    if [String, Integer, Float, Time].any?{|kls| kls.method_defined?(m)}
      nil
    else
      super
    end
  end
end


x = 'string'
puts x.upcase.strip.rjust(10).inspect
# "    STRING"
x = nil
puts x.upcase.strip.rjust(10).inspect
# nil

x = Time.now
puts (x + 1.day).strftime("%d of %B, %Y").rjust(50).inspect
# "                             29 of September, 2020"
x = nil
puts (x + 1.day).strftime("%d of %B, %Y").rjust(50).inspect
# nil

x = 20.0
puts (x + 2 * 50 / 2 % 3 * (3 * 4)).inspect
# 44.0
x = nil
puts (x + 2 * 50 / 2 % 3 * (2/ 4)).inspect
# nil