[harry]

I've made vague, childish threats towards AT&T and had immediate beyond-the-call-of-duty service in return.

related: http://twitter.com/damonish/status/14889207186

[relix]

If user satisfaction is mapped on the X-axis of real numbers, doing beyond-the-call-of-duty service for a customer with negative user satisfaction is equivalent to multiplying by -1.