Telemarketers are one step below lawyers.

They bug you for the stupidest reasons, at the worst possible times. These soulless creatures know that they suck, but they don't have any real skills, so all they can do is ruin your life. It would be awesome if they all took a long walk off of a short pier.

This dude really, REALLY, doesn't like to be disturbed. While the audio is great, the video below is even better, as they take the audio from the call, and lip sync to it.