How would you get revenge on someone who did something terrible to you?

Plant child pornography and call the cops.

I have a saying I go by: "If you step on my toes, I'll cut your foot off"

Meaning, whatever someone does to me, I will return it with something worse.

Also, I go by the saying "Revenge is a meal best served cold"

Which means not to go into revenge all angry and bothered. Be calm and collected about it so you can plan it out clearly without any mistakes and really enjoy the fruits of revenge

i usually plan the best revenge but after a week or so i cool off and i dont care anymore

Call my old unit to deal with it. You don't ever mess with the Marines!

spam them with a brillion text messages. hopefully they wont have unlimited.

using txtdrop.com and imacros firefox plugin. :]

Arson. Fire is the cleanser.

Light him/her on fire