This isn't rare after all!

Sadism is the derivation of pleasure as a result of inflicting pain, or watching pain inflicted, on others. (Courtesy: Wikipedia!)

(Noun)

1. a morbid form of enjoyment achieved by acting cruel to another, or others.
2. (in general use) Deliberate cruelty, either mental or physical.

Sadist- Someone who obtains pleasure from inflicting pain or others

(Courtesy: WordWeb)

Sadism- bull shit.
Sadist- You want their names in Alphabetical order?

(Courtesy: Me.)