How to Suicide : World of Tanks Discussions & Submissions

If you suicide in the beginning of the game, without hitting anyone then you will get 0 exp. However if you are one hit away from being killed, and are sure you will be killed, this is a good way to deny the enemy some exp.

Simply exit the battle, by pressing the ESC button, and then clicking the Exit Battle button. Your tank will then explode, with no one getting the experience.