# File lib/rspec/mocks/matchers/receive.rb, line 24
        def setup_negative_expectation(subject, &block)
          # ensure `never` goes first for cases like `never.and_return(5)`,
          # where `and_return` is meant to raise an error
          @recorded_customizations.unshift Customization.new(:never, [], nil)

          setup_expectation(subject, &block)
        end