I was on the phone with an irate client with a complaint one time, and the guy was really straining my nerves. Took everything I had to remain polite and calm. So after I made a point in my defense, there was crickets on the other end of the line. I totally lost it: "ARE YOU F***** KIDDING ME......THIS C*** HANGS UP ON ME, WHAT A P****, WHAT A TOTAL DOUCHEBAG" etc.
Immediately: "I'm still here."
Needless to say, etc etc etc.