This is the final but most essential step to holding a grudge. Once you've mastered Hate, you'll have no problem being bitter and resentful for a long, long time.

Unfortunately, Hate is the most difficult element to cultivate. Not to say that it is impossible to do, merely time-consuming. Hate can be attained in several ways if, as in rare cases, it does not occur naturally. The most simple and effective method is to make it personal.

Focus on the individual with whom you wish to have a grudge. Recall other details that may facilitate hatred: bad habits, annoying qualities, past misdeeds toward you, etc. Remember that no grievance is too petty or small.

Keep these details in mind whenever you have anything to do with this person.

Complain loudly and often about this person to anyone who will listen.

If necessary, thumbtack a large picture of the individual where you can see it every day and spend at least ten minutes seething at it.

In no time at all, you will have a very deep sense of hatred for this person.

This method also works extremely well for non-persons like large corporations or even objects. Frequently-repeated television commercials alone can inspire deeply-seeded resentment in the average grudge-holder. This is why most people despise such TV icons as Chester Cheetah, the Budweiser frogs, and Monica Lewinsky.

So now that you have it down pat, try it out. Go on, hold that grudge! Be petty and childish. I know you can do it. I have faith.

The only element left to master is time; time to rage, seethe, fester, and nurture that grudge until it's something you can be proud of. And that, my friend, I'll leave to you.